chore: Removed next dependabot group, removed extra text-case

Move the remaining lint rules and suppressions to Oxlint, remove Biome configuration and dependency, and update lint scripts and repository guidance.

.github/copilot-instructions.md

@@ -21,7 +21,7 @@
 ## Repo summary
 
 - Nav's design system. Yarn 4 workspaces monorepo: published packages under `@navikt/` + docs site `aksel.nav.no/` + `apps/` + `tooling/`.
-- Stack: TypeScript 6, React 19 (dev), Next.js 16, Storybook 10, Vitest 4, Oxlint 1 + ESLint 9, Stylelint 17, Biome 2 (lint only), Prettier 3 (formatting). Node 22+, Yarn 4.18.0.
+- Stack: TypeScript 6, React 19 (dev), Next.js 16, Storybook 10, Vitest 5, Oxlint 1 (with ESLint plugins as JS plugins), Stylelint 17, Prettier 3 (formatting). Node 22+, Yarn 4.18.0.
 - Published `@navikt/*` packages must stay React 17 compatible (peer `react ^17 || ^18 || ^19`).
 
 ## Start and validate
@@ -44,7 +44,7 @@
 
 ## Commands
 
-- `corepack yarn oxlint --deny-warnings <files...>` / `corepack yarn eslint --max-warnings=0 --no-warn-ignored <files...>` (both: oxlint runs most rules, ESLint the rest) / `corepack yarn stylelint <files...>` / `corepack yarn biome lint --no-errors-on-unmatched <files...>`
+- `corepack yarn oxlint --deny-warnings <files...>` / `corepack yarn stylelint <files...>`
 - `corepack yarn tsc --noEmit --incremental false --project <tsconfig>` - targeted type-check
 - `corepack yarn workspace <name> <script>` - e.g. `@navikt/ds-react test` (Vitest + tsc), `website test`
 - `corepack yarn lint` / `corepack yarn test` / `corepack yarn boot` - root suites (slow; cross-workspace changes only)
@@ -63,7 +63,7 @@ Path-specific rules load automatically from `.github/instructions/` (see each `a
 - `@navikt/aksel/src/` - CLI and codemods
 - `aksel.nav.no/website/` - Next.js docs site · `aksel.nav.no/sanity-studio/` - CMS schema
 - `apps/playroom/`, `apps/mcp-server/`, `apps/figma-icon-plugin/` - apps · `tooling/` - ESLint plugin, scripts, changelog, analyzer
-- `.changeset/` - release notes · Root config: `.oxlintrc.json`, `eslint.config.js`, `stylelint.config.mjs`, `biome.json`, `vitest.config.mts`, `.storybook/`
+- `.changeset/` - release notes · Root config: `oxlint.config.mts`, `stylelint.config.mjs`, `vitest.config.mts`, `.storybook/`
 
 ## Skills and agents
 

.github/dependabot.yml

@@ -15,18 +15,12 @@ updates:
     registries:
       - npm-github
     groups:
-      next:
-        applies-to: version-updates
-        patterns:
-          - "@next/eslint-plugin-next"
-          - "next"
       sanity:
         applies-to: version-updates
         patterns:
           - "sanity"
           - "sanity-*"
           - "@sanity/*"
-          - "next-sanity"
           - "@portabletext/*"
       eslint:
         applies-to: version-updates
@@ -48,18 +42,12 @@ updates:
           - "vitest"
           - "@vitest/*"
       # Security updates ignore version-update groups, so mirror them to keep lockstep packages together.
-      next-security:
-        applies-to: security-updates
-        patterns:
-          - "@next/eslint-plugin-next"
-          - "next"
       sanity-security:
         applies-to: security-updates
         patterns:
           - "sanity"
           - "sanity-*"
           - "@sanity/*"
-          - "next-sanity"
           - "@portabletext/*"
       eslint-security:
         applies-to: security-updates

.github/instructions/code-syntax.instructions.md

@@ -1,11 +1,11 @@
 ---
-description: "JS/TS conventions not enforced by ESLint/Biome: loops, export style and placement."
+description: "JS/TS conventions not enforced by Oxlint: loops, export style and placement."
 applyTo: "**/*.ts,**/*.tsx,**/*.js,**/*.mts,**/*.mjs"
 ---
 
 # JS/TS conventions
 
-Formatting, import order and `import type` are handled by Prettier and Biome. Don't hand-tune them.
+Formatting, import order and `import type` are handled by Prettier. Don't hand-tune them.
 
 - Use `for...of` instead of `Array.forEach`. It supports `break`/`continue`/`await` and reads top-down.
 - Use named exports only. Keep type exports separate from value exports (`export { X }` / `export type { XProps }`).

.github/instructions/codemod.instructions.md

@@ -9,7 +9,7 @@ applyTo: "@navikt/aksel/**"
 - Every transform is registered in `src/migrations-config.ts` (`value`, `path` without extension, `description`, `ignoredExtensions`). `value` must be unique and is the public CLI name (`v8-accordion-variant`).
 - Test with fixtures: `tests/<fixture>.input.js` → `tests/<fixture>.output.js`, run via `check(__dirname, { fixture, migration })` from `src/codemod/utils/check.ts`. Output is compared after Prettier, so whitespace doesn't matter.
 - Reuse helpers in `src/codemod/utils/` (imports, props, JSX values, token translation) before writing new AST code.
-- Fixtures (`*.input.*`, `*.output.*`) are excluded from ESLint and TypeScript. Don't "fix" them to match lint rules.
+- Fixtures (`*.input.*`, `*.output.*`) are excluded from Oxlint and TypeScript. Don't "fix" them to match lint rules.
 - `src/version.ts` is generated by `build`. Don't edit it.
 - `tests/migrations.test.ts` checks `dist/`. Run `corepack yarn workspace @navikt/aksel build` before `test`, or new transforms fail with "transform-path" errors.
 - Consumer docs (`README.md`, website) show `npx @navikt/aksel ...` on purpose. Keep them.

.github/instructions/ds-react-component.instructions.md

@@ -11,7 +11,7 @@ For changes to component state, callbacks, async behavior, composition, semantic
 
 ## Compatibility (why: peer range is `react ^17 || ^18 || ^19`)
 
-- No React 18/19-only APIs. ESLint `no-restricted-imports` blocks e.g. `React.useId`. Use the internal `useId`, `useClientLayoutEffect`, etc. from `utils-external/`.
+- No React 18/19-only APIs. Oxlint `no-restricted-imports` blocks e.g. `React.useId`. Use the internal `useId`, `useClientLayoutEffect`, etc. from `utils-external/`.
 - Import React explicitly in TSX (`import React from "react"`). `tsconfig` uses classic `jsx: "react"`.
 - Component `index.ts` starts with `"use client"`.
 

.github/instructions/website.instructions.md

@@ -8,7 +8,7 @@ applyTo: "aksel.nav.no/website/**"
 - Both routers are in use: `app/` (App Router, `cacheComponents: true` in `next.config.ts`) and `pages/` (examples, templates, legacy). Stay in the router already used nearby. Don't move routes between them.
 - In `app/`, dynamic data needs Suspense or `"use cache"`, following nearby code. Cache Components errors at build time are real failures.
 - For website build, runtime, or performance issues, use the `website-debugging` skill to establish the cause before changing code.
-- `pages/eksempler/**` and `pages/templates/**` are public code snippets. Use the `website-example` skill. ESLint rules `aksel-local/{import-check,comment-check,args-check}` enforce their shape.
+- `pages/eksempler/**` and `pages/templates/**` are public code snippets. Use the `website-example` skill. Oxlint rules `aksel-local/{import-check,comment-check,args-check}` enforce their shape.
 - Reuse `@/` utils and components nearby before adding abstractions.
 - Examples/templates: `corepack yarn storybook:aksel` (no secrets). `corepack yarn dev` only for app behavior; it needs `SANITY_READ_NO_DRAFTS` and `NPM_AUTH_TOKEN`.
 - Never run `update:*`, `backup` or other Sanity-writing scripts unless asked. They write to the CMS.

.github/skills/aksel-local-validation/SKILL.md

@@ -19,7 +19,7 @@ Validate the smallest relevant surface with repository-pinned tools. Expand only
 - Do not add a dependency only to run a one-off check. If the task truly needs new tooling, add and lock it explicitly.
 - Public consumer docs may intentionally show `npx @navikt/aksel`. Preserve those examples unless the task changes consumer setup.
 - If Corepack/Yarn reports a user-level configuration error, stop and report it. Never edit configuration outside the repository.
-- Do not claim type safety from ESLint or tests. Run a TypeScript-aware command when TypeScript behavior changed.
+- Do not claim type safety from Oxlint or tests. Run a TypeScript-aware command when TypeScript behavior changed.
 
 ## 1. Determine affected projects
 
@@ -58,9 +58,7 @@ Group only matching files:
 
 ```sh
 corepack yarn oxlint --deny-warnings <changed .ts/.tsx/.js/.jsx files>
-corepack yarn eslint --max-warnings=0 --no-warn-ignored <changed .ts/.tsx/.js/.jsx files>
 corepack yarn stylelint <changed .css files>
-corepack yarn biome lint --no-errors-on-unmatched <changed supported source/config files>
 ```
 
 Do not pass unsupported file types to make a command appear comprehensive. Documentation-only changes need no code validation unless a documentation check exists.

.github/skills/code-review/SKILL.md

@@ -41,7 +41,7 @@ For changes to component state, callbacks, async behavior, composition, semantic
 - 🟡 **Suggestion**: should fix. Missing test, docs or changeset, maintainability risk, over-editing.
 - 💭 **Nit**: optional. Leave it out when in doubt.
 
-Skip anything ESLint, Stylelint, Biome, Prettier or TypeScript already catches. No praise-only or speculative comments. Every finding says **why** it matters and what to do.
+Skip anything Oxlint, Stylelint, Prettier or TypeScript already catches. No praise-only or speculative comments. Every finding says **why** it matters and what to do.
 
 ## Checklist
 

.github/skills/website-example/SKILL.md

@@ -4,7 +4,7 @@ description: >
   Add or update a code example or template shown on aksel.nav.no
   (aksel.nav.no/website/pages/eksempler/** or pages/templates/**). Use when
   asked to create a component example, demo, usage snippet or page template
-  for the documentation site, or when an example fails the aksel-local ESLint
+  for the documentation site, or when an example fails the aksel-local Oxlint
   rules or validate:eksempler.
 argument-hint: "Component group and example name, e.g. button/loading"
 ---
@@ -55,7 +55,6 @@ Hard rules (enforced by `tooling/eslint` rules `aksel-local/*`):
 
 ```sh
 corepack yarn oxlint --deny-warnings <file>
-corepack yarn eslint --max-warnings=0 --no-warn-ignored <file>
 corepack yarn workspace website validate:eksempler
 corepack yarn storybook:aksel   # visual check at :6007, needs no secrets
 ```
@@ -64,4 +63,4 @@ Never run `update:eksempler`. It writes to the Sanity CMS. Tell the user that a
 
 ## Done when
 
-ESLint and `validate:eksempler` pass, and the story renders in `storybook:aksel`.
+Oxlint and `validate:eksempler` pass, and the story renders in `storybook:aksel`.

.github/workflows/build-validation.yml

@@ -17,7 +17,7 @@ permissions:
 
 jobs:
   lint:
-    name: Lint (Oxlint, ESLint, Stylelint etc.)
+    name: Lint (Oxlint, Stylelint etc.)
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code

.oxlintrc.json

@@ -1,467 +0,0 @@
-{
-  "$schema": "./node_modules/oxlint/configuration_schema.json",
-  "plugins": ["react", "import"],
-  "categories": {
-    "correctness": "off"
-  },
-  "settings": {
-    "react": {
-      "version": "19.3.1"
-    }
-  },
-  "env": {
-    "builtin": true,
-    "es2026": true,
-    "browser": true,
-    "node": true
-  },
-  "ignorePatterns": [
-    "**/public",
-    "@navikt/aksel/**/*.input.*",
-    "@navikt/aksel/**/*.output.*",
-    "**/codemod/**/*.js",
-    "**/tokens/**/plugin.js",
-    "**/query-types.ts",
-    ".yarn",
-    "**/next-env.d.ts",
-    "@navikt/aksel-icons/src/**",
-    "@navikt/aksel/src/version.ts",
-    "@navikt/core/tailwind/{src/tokens.ts,tailwind.config.js,tailwind.darkside.config.js}",
-    "@navikt/core/tokens/token_docs.js",
-    "apps/playroom/{playroom.config.js,src/auto-generated-imports.ts}",
-    "**/.build",
-    "**/storybook-static",
-    "**/test-results",
-    "tooling/analyzer/temp",
-    "apps/figma-icon-plugin/src/ui/vite-env.d.ts"
-  ],
-  "rules": {
-    "constructor-super": "error",
-    "for-direction": "error",
-    "getter-return": "error",
-    "no-async-promise-executor": "error",
-    "no-case-declarations": "error",
-    "no-class-assign": "error",
-    "no-compare-neg-zero": "error",
-    "no-cond-assign": "error",
-    "no-const-assign": "error",
-    "no-constant-binary-expression": "error",
-    "no-constant-condition": "error",
-    "no-control-regex": "error",
-    "no-debugger": "error",
-    "no-delete-var": "error",
-    "no-dupe-class-members": "error",
-    "no-dupe-else-if": "error",
-    "no-dupe-keys": "error",
-    "no-duplicate-case": "error",
-    "no-empty": "error",
-    "no-empty-character-class": "error",
-    "no-empty-pattern": "error",
-    "no-empty-static-block": "error",
-    "no-ex-assign": "error",
-    "no-extra-boolean-cast": "error",
-    "no-fallthrough": "error",
-    "no-func-assign": "error",
-    "no-global-assign": "error",
-    "no-import-assign": "error",
-    "no-invalid-regexp": "error",
-    "no-irregular-whitespace": "error",
-    "no-loss-of-precision": "error",
-    "no-misleading-character-class": "error",
-    "no-new-native-nonconstructor": "error",
-    "no-nonoctal-decimal-escape": "error",
-    "no-obj-calls": "error",
-    "no-prototype-builtins": "error",
-    "no-redeclare": "error",
-    "no-regex-spaces": "error",
-    "no-self-assign": "error",
-    "no-setter-return": "error",
-    "no-shadow-restricted-names": "error",
-    "no-sparse-arrays": "error",
-    "no-this-before-super": "error",
-    "no-unassigned-vars": "error",
-    "no-unexpected-multiline": "error",
-    "no-unreachable": "error",
-    "no-unsafe-finally": "error",
-    "no-unsafe-negation": "error",
-    "no-unsafe-optional-chaining": "error",
-    "no-unused-labels": "error",
-    "no-unused-private-class-members": "error",
-    "no-unused-vars": "error",
-    "no-useless-backreference": "error",
-    "no-useless-catch": "error",
-    "no-useless-escape": "error",
-    "no-with": "error",
-    "preserve-caught-error": "error",
-    "require-yield": "error",
-    "use-isnan": "error",
-    "valid-typeof": "error",
-    "react/jsx-key": "error",
-    "react/jsx-no-comment-textnodes": "error",
-    "react/jsx-no-duplicate-props": "error",
-    "react/jsx-no-target-blank": "error",
-    "react/jsx-no-undef": "error",
-    "react/no-children-prop": "error",
-    "react/no-danger-with-children": "error",
-    "react/no-direct-mutation-state": "error",
-    "react/no-find-dom-node": "error",
-    "react/no-is-mounted": "error",
-    "react/no-render-return-value": "error",
-    "react/no-string-refs": "error",
-    "react/no-unescaped-entities": "error",
-    "react/no-unknown-property": "error",
-    "react/react-in-jsx-scope": "error",
-    "import/default": "error",
-    "import/no-named-as-default-member": "warn",
-    "import/no-duplicates": "warn",
-    "react/jsx-curly-brace-presence": [
-      "error",
-      {
-        "propElementValues": "always"
-      }
-    ],
-    "react/rules-of-hooks": "error",
-    "react/exhaustive-deps": [
-      "warn",
-      {
-        "additionalHooks": "(useClientLayoutEffect)"
-      }
-    ]
-  },
-  "overrides": [
-    {
-      "files": ["aksel.nav.no/sanity-studio/**"],
-      "rules": {
-        "react/react-in-jsx-scope": "off"
-      }
-    },
-    {
-      "files": [
-        "**/*.stories.{ts,tsx,js,jsx,mjs,cjs}",
-        "**/*.story.{ts,tsx,js,jsx,mjs,cjs}"
-      ],
-      "rules": {
-        "storybook/await-interactions": "error",
-        "storybook/context-in-play-function": "error",
-        "storybook/default-exports": "error",
-        "storybook/hierarchy-separator": "warn",
-        "storybook/no-redundant-story-name": "warn",
-        "storybook/no-renderer-packages": "error",
-        "storybook/prefer-pascal-case": "warn",
-        "storybook/story-exports": "error",
-        "storybook/use-storybook-expect": "error",
-        "storybook/use-storybook-testing-library": "error",
-        "import/no-anonymous-default-export": "off",
-        "react/rules-of-hooks": "off"
-      },
-      "jsPlugins": ["eslint-plugin-storybook"]
-    },
-    {
-      "files": ["**/.storybook/main.{js,cjs,mjs,ts}"],
-      "rules": {
-        "storybook/no-uninstalled-addons": "error"
-      },
-      "jsPlugins": ["eslint-plugin-storybook"]
-    },
-    {
-      "files": ["**/*.{ts,tsx}"],
-      "rules": {
-        "constructor-super": "off",
-        "getter-return": "off",
-        "no-class-assign": "off",
-        "no-const-assign": "off",
-        "no-dupe-class-members": "off",
-        "no-dupe-keys": "off",
-        "no-func-assign": "off",
-        "no-import-assign": "off",
-        "no-new-native-nonconstructor": "off",
-        "no-obj-calls": "off",
-        "no-redeclare": "off",
-        "no-setter-return": "off",
-        "no-this-before-super": "off",
-        "no-unreachable": "off",
-        "no-unsafe-negation": "off",
-        "no-with": "off",
-        "no-var": "error",
-        "prefer-const": "error",
-        "prefer-rest-params": "error",
-        "prefer-spread": "error",
-        "no-array-constructor": "error",
-        "no-unused-expressions": [
-          "error",
-          {
-            "allowShortCircuit": true,
-            "allowTernary": true
-          }
-        ],
-        "typescript/ban-ts-comment": "error",
-        "typescript/no-duplicate-enum-values": "error",
-        "typescript/no-empty-object-type": "error",
-        "typescript/no-explicit-any": "off",
-        "typescript/no-extra-non-null-assertion": "error",
-        "typescript/no-misused-new": "error",
-        "typescript/no-namespace": "error",
-        "typescript/no-non-null-asserted-optional-chain": "error",
-        "typescript/no-require-imports": "error",
-        "typescript/no-this-alias": "error",
-        "typescript/no-unnecessary-type-constraint": "error",
-        "typescript/no-unsafe-declaration-merging": "error",
-        "typescript/no-unsafe-function-type": "error",
-        "typescript/no-wrapper-object-types": "error",
-        "typescript/prefer-as-const": "error",
-        "typescript/prefer-namespace-keyword": "error",
-        "typescript/triple-slash-reference": "error",
-        "import/default": "off",
-        "import/no-named-as-default-member": "off"
-      },
-      "plugins": ["typescript"]
-    },
-    {
-      "files": ["**/*.test.*", "**/__tests__/*"],
-      "rules": {
-        "testing-library/await-async-events": [
-          "error",
-          {
-            "eventModule": "userEvent"
-          }
-        ],
-        "testing-library/await-async-queries": "error",
-        "testing-library/await-async-utils": "error",
-        "testing-library/no-await-sync-events": [
-          "error",
-          {
-            "eventModules": ["fire-event"]
-          }
-        ],
-        "testing-library/no-await-sync-queries": "error",
-        "testing-library/no-container": "error",
-        "testing-library/no-debugging-utils": "warn",
-        "testing-library/no-dom-import": ["error", "react"],
-        "testing-library/no-global-regexp-flag-in-query": "error",
-        "testing-library/no-manual-cleanup": "error",
-        "testing-library/no-node-access": "error",
-        "testing-library/no-promise-in-fire-event": "error",
-        "testing-library/no-render-in-lifecycle": "error",
-        "testing-library/no-unnecessary-act": "error",
-        "testing-library/no-wait-for-multiple-assertions": "error",
-        "testing-library/no-wait-for-side-effects": "error",
-        "testing-library/no-wait-for-snapshot": "error",
-        "testing-library/prefer-find-by": "error",
-        "testing-library/prefer-presence-queries": "error",
-        "testing-library/prefer-query-by-disappearance": "error",
-        "testing-library/prefer-screen-queries": "error",
-        "testing-library/render-result-naming-convention": "error",
-        "vitest/expect-expect": "error",
-        "vitest/no-commented-out-tests": "error",
-        "vitest/no-disabled-tests": "warn",
-        "vitest/no-focused-tests": "error",
-        "vitest/no-identical-title": "error",
-        "vitest/no-import-node-test": "error",
-        "vitest/no-interpolation-in-snapshots": "error",
-        "vitest/no-mocks-import": "error",
-        "vitest/no-standalone-expect": "error",
-        "vitest/no-unneeded-async-expect-function": "error",
-        "vitest/prefer-called-exactly-once-with": "error",
-        "vitest/require-local-test-context-for-concurrent-snapshots": "error",
-        "vitest/valid-describe-callback": "error",
-        "vitest/valid-expect": "error",
-        "vitest/valid-expect-in-promise": "error",
-        "vitest/valid-title": "error"
-      },
-      "jsPlugins": ["eslint-plugin-testing-library"],
-      "plugins": ["vitest"]
-    },
-    {
-      "files": ["aksel.nav.no/website/**"],
-      "rules": {
-        "react/no-unknown-property": [
-          "error",
-          {
-            "ignore": ["jsx", "global"]
-          }
-        ],
-        "react/react-in-jsx-scope": "off",
-        "nextjs/google-font-display": "warn",
-        "nextjs/google-font-preconnect": "warn",
-        "nextjs/next-script-for-ga": "warn",
-        "nextjs/no-async-client-component": "warn",
-        "nextjs/no-before-interactive-script-outside-document": "warn",
-        "nextjs/no-css-tags": "warn",
-        "nextjs/no-head-element": "warn",
-        "nextjs/no-img-element": "warn",
-        "nextjs/no-page-custom-font": "warn",
-        "nextjs/no-styled-jsx-in-document": "warn",
-        "nextjs/no-sync-scripts": "warn",
-        "nextjs/no-title-in-document-head": "warn",
-        "nextjs/no-typos": "warn",
-        "nextjs/no-unwanted-polyfillio": "warn",
-        "nextjs/inline-script-id": "error",
-        "nextjs/no-assign-module-variable": "error",
-        "nextjs/no-document-import-in-page": "error",
-        "nextjs/no-duplicate-head": "error",
-        "nextjs/no-head-import-in-document": "error",
-        "nextjs/no-script-component-in-head": "error"
-      },
-      "plugins": ["nextjs"]
-    },
-    {
-      "files": ["aksel.nav.no/website/pages/eksempler/**"],
-      "rules": {
-        "nextjs/no-img-element": "off"
-      },
-      "plugins": ["nextjs"]
-    },
-    {
-      "files": [
-        "aksel.nav.no/website/pages/eksempler/**/*.tsx",
-        "aksel.nav.no/website/pages/templates/**/*.tsx"
-      ],
-      "rules": {
-        "aksel-local/args-check": ["error"],
-        "aksel-local/comment-check": ["error"]
-      },
-      "jsPlugins": ["eslint-plugin-aksel-local"]
-    },
-    {
-      "files": [
-        "**/examples/__parts*/*.tsx",
-        "**/pages/templates/**/*.tsx",
-        "**/pages/eksempler/**/*.tsx"
-      ],
-      "rules": {
-        "aksel-local/import-check": ["error"]
-      },
-      "jsPlugins": ["eslint-plugin-aksel-local"]
-    },
-    {
-      "files": ["**/examples/__parts-inline/*.tsx"],
-      "rules": {
-        "arrow-body-style": ["error", "never"],
-        "func-style": ["error", "expression"],
-        "import/no-named-export": "error"
-      }
-    },
-    {
-      "files": ["@navikt/**"],
-      "rules": {
-        "no-restricted-imports": [
-          "error",
-          {
-            "paths": [
-              {
-                "name": "react",
-                "importNames": [
-                  "useId",
-                  "useInsertionEffect",
-                  "useSyncExternalStore",
-                  "useDeferredValue",
-                  "useTransition",
-                  "startTransition"
-                ],
-                "message": "React 18+ API not allowed. We currently only support React-features accesible in React 17. To add new features, we will need to update peerDependencies (breaking change)."
-              },
-              {
-                "name": "react",
-                "importNames": [
-                  "useOptimistic",
-                  "useActionState",
-                  "use",
-                  "cache",
-                  "useEffectEvent",
-                  "ViewTransition",
-                  "addTransitionType"
-                ],
-                "message": "React 19+ API not allowed. We currently only support React-features accesible in React 17. To add new features, we will need to update peerDependencies (breaking change)."
-              },
-              {
-                "name": "react-dom/client",
-                "importNames": ["createRoot", "hydrateRoot"],
-                "message": "React 18+ API not allowed (targeting React 17)."
-              },
-              {
-                "name": "react-dom",
-                "importNames": ["browser"],
-                "message": "React 19+ API not allowed (targeting React 17)."
-              }
-            ],
-            "patterns": [
-              {
-                "group": ["fs", "path"],
-                "message": "Use `node:` prefix when importing native node modules, e.g. `import path from \"node:path\"`."
-              },
-              {
-                "group": ["**/esm/**", "**/cjs/**"],
-                "message": "Do not import from build output directories. Import from source instead."
-              }
-            ]
-          }
-        ],
-        "no-restricted-properties": [
-          "error",
-          {
-            "object": "React",
-            "property": "useId",
-            "message": "React 18+ API not allowed (targeting React 17)."
-          },
-          {
-            "object": "React",
-            "property": "useInsertionEffect",
-            "message": "React 18+ API not allowed (targeting React 17)."
-          },
-          {
-            "object": "React",
-            "property": "useSyncExternalStore",
-            "message": "React 18+ API not allowed (targeting React 17)."
-          },
-          {
-            "object": "React",
-            "property": "useDeferredValue",
-            "message": "React 18+ API not allowed (targeting React 17)."
-          },
-          {
-            "object": "React",
-            "property": "useTransition",
-            "message": "React 18+ API not allowed (targeting React 17)."
-          },
-          {
-            "object": "React",
-            "property": "startTransition",
-            "message": "React 18+ API not allowed (targeting React 17)."
-          },
-          {
-            "object": "React",
-            "property": "useOptimistic",
-            "message": "React 19+ API not allowed (targeting React 17)."
-          },
-          {
-            "object": "React",
-            "property": "useActionState",
-            "message": "React 19+ API not allowed (targeting React 17)."
-          },
-          {
-            "object": "React",
-            "property": "use",
-            "message": "React 19+ API not allowed (targeting React 17)."
-          },
-          {
-            "object": "React",
-            "property": "cache",
-            "message": "React 19+ API not allowed (targeting React 17)."
-          },
-          {
-            "object": "React",
-            "property": "useEffectEvent",
-            "message": "React 19+ API not allowed (targeting React 17)."
-          }
-        ]
-      }
-    },
-    {
-      "files": ["@navikt/**/*.stories.tsx"],
-      "rules": {
-        "no-restricted-imports": "off",
-        "no-restricted-properties": "off"
-      }
-    }
-  ]
-}

.vscode/extensions.json

@@ -1,9 +1,7 @@
 {
   "recommendations": [
     "oxc.oxc-vscode",
-    "dbaeumer.vscode-eslint",
     "stylelint.vscode-stylelint",
-    "biomejs.biome",
     "esbenp.prettier-vscode",
     "denoland.vscode-deno",
     "github.vscode-github-actions",

.vscode/settings.json

@@ -1,6 +1,5 @@
 {
   "cssVariables.lookupFiles": ["@navikt/core/tokens/dist/tokens.css"],
-  "eslint.problems.shortenToSingleLine": true,
   "editor.defaultFormatter": "esbenp.prettier-vscode",
   "files.watcherExclude": {
     "**/.yarn/**": true,

@navikt/aksel-icons/config/metadata.js

@@ -15,7 +15,6 @@ ymlList.forEach((file) => {
   const ymlData = load(fs.readFileSync(`${basePath}/${file}`), {
     schema: JSON_SCHEMA,
   });
-  // biome-ignore lint/complexity/useOptionalChain: optional chain not supported in enviroment. Consider revriting to Typescript
   if (ymlData.keywords && ymlData.keywords.includes("[ignore-docs]")) {
     return;
   }

@navikt/aksel-icons/util/useId.ts

@@ -1,4 +1,4 @@
-/* biome-ignore-all lint/correctness/useHookAtTopLevel: `useId` is invariant at runtime. */
+/* oxlint-disable react/rules-of-hooks -- `useId` is invariant at runtime */
 import React, { useEffect, useState } from "react";
 
 // https://github.com/mui/material-ui/blob/master/packages/mui-utils/src/useId.ts
@@ -14,7 +14,7 @@ function useGlobalId(idOverride?: string): string | undefined {
       // We can't use it server-side.
       // If you want to use random values please consider the Birthday Problem: https://en.wikipedia.org/wiki/Birthday_problem
       globalId += 1;
-      setDefaultId(`aksel-icon-${globalId}`); // eslint-disable-line react-hooks/set-state-in-effect
+      setDefaultId(`aksel-icon-${globalId}`);
     }
   }, [defaultId]);
   return id;

@navikt/aksel/src/codemod/transforms/rename-prop/tests/rename.input.js

@@ -1,4 +1,3 @@
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <SpeechBubble illustration={<Illustration />}>

@navikt/aksel/src/codemod/transforms/rename-prop/tests/rename.output.js

@@ -1,4 +1,3 @@
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <SpeechBubble avatar={<Illustration />}>

@navikt/aksel/src/codemod/transforms/v1.0.0/chat/tests/complete.input.js

@@ -1,6 +1,5 @@
 import { SpeechBubble, Button } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <SpeechBubble

@navikt/aksel/src/codemod/transforms/v1.0.0/chat/tests/complete.output.js

@@ -1,6 +1,5 @@
 import { Chat, Button } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <Chat

@navikt/aksel/src/codemod/transforms/v1.0.0/chat/tests/idempotent.input.js

@@ -1,6 +1,5 @@
 import { Chat, Button } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <Chat

@navikt/aksel/src/codemod/transforms/v1.0.0/chat/tests/idempotent.output.js

@@ -1,6 +1,5 @@
 import { Chat, Button } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <Chat

@navikt/aksel/src/codemod/transforms/v1.0.0/chat/tests/props.input.js

@@ -1,5 +1,4 @@
 import { SpeechBubble, Button } from "@navikt/ds-react";
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <div>

@navikt/aksel/src/codemod/transforms/v1.0.0/chat/tests/props.output.js

@@ -1,5 +1,4 @@
 import { Chat, Button } from "@navikt/ds-react";
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <div>

@navikt/aksel/src/codemod/transforms/v1.0.0/chat/tests/renamed.input.js

@@ -1,5 +1,4 @@
 import { SpeechBubble as DsBubble, Button } from "@navikt/ds-react";
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <div>

@navikt/aksel/src/codemod/transforms/v1.0.0/chat/tests/renamed.output.js

@@ -1,5 +1,4 @@
 import { Chat as DsBubble, Button } from "@navikt/ds-react";
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <div>

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/alias.input.js

@@ -1,6 +1,5 @@
 import { CopyToClipboard as DsCpyButton } from "@navikt/ds-react-internal";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return <DsCpyButton></DsCpyButton>;
 };

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/alias.output.js

@@ -1,6 +1,5 @@
 import { CopyButton } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return <CopyButton />;
 };

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/children.input.js

@@ -1,6 +1,5 @@
 import { CopyToClipboard } from "@navikt/ds-react-internal";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <CopyToClipboard

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/children.output.js

@@ -1,6 +1,5 @@
 import { CopyButton } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <CopyButton copyText="Text to copy" size="medium" text="text">

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/cleanup.input.js

@@ -1,6 +1,5 @@
 import { CopyToClipboard } from "@navikt/ds-react-internal";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return <CopyToClipboard></CopyToClipboard>;
 };

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/cleanup.output.js

@@ -1,6 +1,5 @@
 import { CopyButton } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return <CopyButton />;
 };

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/complete.input.js

@@ -1,6 +1,5 @@
 import { CopyToClipboard } from "@navikt/ds-react-internal";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return (
     <CopyToClipboard

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/complete.output.js

@@ -1,6 +1,5 @@
 import { CopyButton } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return <CopyButton copyText="Text to copy" size="medium" text="text" />;
 };

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/idempotent.input.js

@@ -1,6 +1,5 @@
 import { CopyButton } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return <CopyButton copyText="Text to copy" size="medium" text={props.text} />;
 };

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/idempotent.output.js

@@ -1,6 +1,5 @@
 import { CopyButton } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return <CopyButton copyText="Text to copy" size="medium" text={props.text} />;
 };

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/import.input.js

@@ -1,7 +1,6 @@
 import { CopyToClipboard, Dropdown } from "@navikt/ds-react-internal";
 import { Button } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return <CopyToClipboard></CopyToClipboard>;
 };

@navikt/aksel/src/codemod/transforms/v3.0.0/copybutton/tests/import.output.js

@@ -1,7 +1,6 @@
 import { Dropdown } from "@navikt/ds-react-internal";
 import { Button, CopyButton } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const Page = () => {
   return <CopyButton />;
 };

@navikt/aksel/src/codemod/transforms/v4.0.0/date/tests/complete.input.js

@@ -6,7 +6,6 @@ import {
   UNSAFE_useRangeDatepicker,
 } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const UseDatepicker = () => {
   const { datepickerProps, inputProps } = UNSAFE_useDatepicker({
     fromDate: new Date("Aug 23 2019"),

@navikt/aksel/src/codemod/transforms/v4.0.0/date/tests/complete.output.js

@@ -6,7 +6,6 @@ import {
   useRangeDatepicker,
 } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const UseDatepicker = () => {
   const { datepickerProps, inputProps } = useDatepicker({
     fromDate: new Date("Aug 23 2019"),

@navikt/aksel/src/codemod/transforms/v4.0.0/date/tests/idempotent.input.js

@@ -6,7 +6,6 @@ import {
   useRangeDatepicker,
 } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const UseDatepicker = () => {
   const { datepickerProps, inputProps } = useDatepicker({
     fromDate: new Date("Aug 23 2019"),

@navikt/aksel/src/codemod/transforms/v4.0.0/date/tests/idempotent.output.js

@@ -6,7 +6,6 @@ import {
   useRangeDatepicker,
 } from "@navikt/ds-react";
 
-/* eslint-disable react/jsx-no-undef */
 export const UseDatepicker = () => {
   const { datepickerProps, inputProps } = useDatepicker({
     fromDate: new Date("Aug 23 2019"),

@navikt/aksel/src/codemod/utils/tests/jsx-string-value.test.ts

@@ -37,7 +37,7 @@ describe("getJSXLiteralValue", () => {
   });
 
   test("returns null for TemplateLiteral with expressions", () => {
-    // biome-ignore lint/suspicious/noTemplateCurlyInString: Testing only
+    // oxlint-disable-next-line no-template-curly-in-string -- Testing only
     const node = getAttrValue("<Component prop={`hello ${name}`} />");
     expect(getJSXLiteralValue(node)).toBe(null);
   });

@navikt/aksel/src/codemod/v8-tokens/config/tests/token-regex.test.ts

@@ -209,7 +209,7 @@ describe("getTokenRegex JS", () => {
 
     expect("ATextRed").toMatch(regex);
     expect(" ATextRed ").toMatch(regex);
-    // biome-ignore lint/suspicious/noTemplateCurlyInString: Testing token match inside template string
+    // oxlint-disable-next-line no-template-curly-in-string -- Testing token match inside template string
     expect(" background: `${ATextRed}` ").toMatch(regex);
   });
 

@navikt/aksel/src/codemod/v8-tokens/transforms/tests/token-boundaries.test.ts

@@ -26,7 +26,7 @@ describe("v8-tokens-js keeps boundaries intact", () => {
     ["const a = ASurfaceDefault;", "const a = BgDefault;"],
     ["const a = [ASurfaceDefault];", "const a = [BgDefault];"],
     ["const a = {...ASurfaceDefault};", "const a = {...BgDefault};"],
-    // biome-ignore lint/suspicious/noTemplateCurlyInString: Testing token inside template literal
+    // oxlint-disable-next-line no-template-curly-in-string -- Testing token inside template literal
     ["const a = `${ASurfaceDefault}`;", "const a = `${BgDefault}`;"],
   ])("%s", (input, output) => {
     expect(runJs(`${importLine}\n${input}`)).toBe(

@navikt/core/css/src/primitives/page.css

@@ -2,7 +2,6 @@
   display: flex;
   flex-direction: column;
   min-height: 100vh;
-  /* biome-ignore lint/suspicious/noDuplicateProperties: vh is fallback for browsers that do not support lvh */
   min-height: 100lvh;
 }
 
@@ -20,7 +19,6 @@
 
 .aksel-page__content--fullheight {
   min-height: 100vh;
-  /* biome-ignore lint/suspicious/noDuplicateProperties: vh is fallback for browsers that do not support lvh */
   min-height: 100lvh;
 }
 

@navikt/core/react/src/action-menu/shortcut/ActionMenuShortcutInternal.tsx

@@ -16,10 +16,8 @@ const ActionMenuShortcut = ({ children }: ShortcutProps) => {
     <ActionMenuMarker placement="right">
       {parsed.map((char, index) => (
         <span
-          key={`${children}-${
-            // biome-ignore lint/suspicious/noArrayIndexKey: This is a static list of characters, so using the index as a key is acceptable in this case
-            index
-          }-${char}`}
+          // oxlint-disable-next-line react/no-array-index-key -- This is a static list of characters, so using the index as a key is acceptable in this case
+          key={`${children}-${index}-${char}`}
           className="aksel-action-menu__shortcut"
         >
           {char}

@navikt/core/react/src/data-grid/root/DataGridRoot.tsx

@@ -147,7 +147,7 @@ export namespace DataGrid {
 
   // eslint-disable-next-line @typescript-eslint/no-namespace
   export namespace Table {
-    // biome-ignore lint/suspicious/noShadow: intentional namespace re-export
+    // oxlint-disable-next-line no-shadow -- intentional namespace re-export
     export type Props<T = unknown> = DataGridTable.Props<T>;
     export type Sorting = DataGridTable.Sorting;
     export type SortEntry = DataGridTable.SortEntry;
@@ -159,7 +159,7 @@ export namespace DataGrid {
 
   // eslint-disable-next-line @typescript-eslint/no-namespace
   export namespace Preferences {
-    // biome-ignore lint/suspicious/noShadow: intentional namespace re-export
+    // oxlint-disable-next-line no-shadow -- intentional namespace re-export
     export type Props = DataGridPreferences.Props;
   }
 }

@navikt/core/react/src/data/drag-and-drop/root/DragAndDropRoot.tsx

@@ -1,4 +1,3 @@
-/** biome-ignore-all lint/correctness/useHookAtTopLevel: False positive because of the way forwardRef() is added */
 import React, {
   forwardRef,
   useCallback,

@navikt/core/react/src/data/table/column-header/useTableColumnResize.ts

@@ -139,7 +139,6 @@ function useTableColumnResize({
     [resizeMin, resizeMax, setWidth],
   );
 
-  // biome-ignore lint/correctness/useExhaustiveDependencies: We only want to run this on mount and when autoResizeOnce changes
   useEffect(
     function autoResizeColumn() {
       if (!autoResizeOnce) {

@navikt/core/react/src/data/token-filter/TokenFilter.tsx

@@ -220,7 +220,6 @@ export const TokenFilter = forwardRef<HTMLDivElement, TokenFilterProps>(
     );
 
     return (
-      // biome-ignore lint/a11y/useSemanticElements: search-tag is too new (baseline 2023)
       <div
         ref={ref}
         className={cl("aksel-property-filter", className)}

@navikt/core/react/src/datepicker/week-row/DatePickerWeekRowInternal.tsx

@@ -23,7 +23,7 @@ const DatePickerWeekRow = ({
 
   return (
     <Show below="sm" asChild>
-      {/** biome-ignore lint/a11y/noNoninteractiveElementToInteractiveRole: role="grid" improves a11y reading */}
+      {/* oxlint-disable-next-line jsx-a11y/no-noninteractive-element-to-interactive-role -- role="grid" improves a11y reading */}
       <table className="rdp-table" role="grid">
         <tbody className="rdp-tbody">
           <tr className="rdp-row aksel-date__week-row">

@navikt/core/react/src/form/checkbox/Checkbox.tsx

@@ -26,8 +26,7 @@ export const Checkbox = forwardRef<HTMLInputElement, CheckboxProps>(
       props;
 
     return (
-      // biome-ignore lint/a11y/noStaticElementInteractions: clickable div for checkbox card
-      // biome-ignore lint/a11y/useKeyWithClickEvents: clickable div for checkbox card
+      // oxlint-disable-next-line jsx-a11y/click-events-have-key-events, jsx-a11y/no-static-element-interactions -- clickable div for checkbox card
       <div
         className={cl(className, "aksel-checkbox", `aksel-checkbox--${size}`, {
           "aksel-checkbox--error": hasError,

@navikt/core/react/src/form/combobox/ComboboxWrapper.tsx

@@ -42,7 +42,6 @@ const ComboboxWrapper = ({
   }
 
   return (
-    // biome-ignore lint/a11y/noStaticElementInteractions: Wrapper for combobox input and chips.
     <div
       ref={wrapperRef}
       className={cl(

@navikt/core/react/src/form/combobox/FilteredOptions/AddNewOption.tsx

@@ -52,7 +52,7 @@ const AddNewOption = () => {
             activeDescendantId === filteredOptionsUtil.getAddNewOptionId(id),
         },
       )}
-      // biome-ignore lint/a11y/noNoninteractiveElementToInteractiveRole: List item acts as an option in the combobox.
+      // oxlint-disable-next-line jsx-a11y/no-noninteractive-element-to-interactive-role -- List item acts as an option in the combobox
       role="option"
       aria-selected={false}
     >

@navikt/core/react/src/form/combobox/FilteredOptions/FilteredOptions.tsx

@@ -113,7 +113,7 @@ const FilteredOptions = () => {
         {shouldRenderFilteredOptionsList && (
           <ul
             ref={setFilteredOptionsRef}
-            // biome-ignore lint/a11y/noNoninteractiveElementToInteractiveRole: The <ul> element acts as a listbox in the combobox.
+            // oxlint-disable-next-line jsx-a11y/no-noninteractive-element-to-interactive-role -- The <ul> element acts as a listbox in the combobox
             role="listbox"
             tabIndex={-1}
             className="aksel-combobox__list-options"

@navikt/core/react/src/form/combobox/FilteredOptions/FilteredOptionsItem.tsx

@@ -76,7 +76,7 @@ const FilteredOptionsItem = ({ option }: { option: ComboboxOption }) => {
           toggleIsListOpen(false);
         }
       }}
-      // biome-ignore lint/a11y/noNoninteractiveElementToInteractiveRole: List item acts as an option in the combobox.
+      // oxlint-disable-next-line jsx-a11y/no-noninteractive-element-to-interactive-role -- List item acts as an option in the combobox
       role="option"
       aria-selected={isInList(option.value, selectedOptions)}
       aria-disabled={isDisabled(option) || undefined}

@navikt/core/react/src/form/combobox/Input/InputController.tsx

@@ -54,8 +54,7 @@ export const InputController = forwardRef<
 
   return (
     <Floating.Anchor asChild ref={setAnchorRef}>
-      {/** biome-ignore lint/a11y/noStaticElementInteractions: Acts as wrapper list-toggle and input */}
-      {/** biome-ignore lint/a11y/useKeyWithClickEvents: key-events are handled by input itself */}
+      {/* oxlint-disable-next-line jsx-a11y/click-events-have-key-events, jsx-a11y/no-static-element-interactions -- key-events are handled by input itself */}
       <div
         className={cl("aksel-combobox__wrapper-inner aksel-text-field__input", {
           "aksel-combobox__wrapper-inner--virtually-unfocused":

@navikt/core/react/src/form/combobox/SelectedOptions/selectedOptionsContext.tsx

@@ -112,7 +112,6 @@ const SelectedOptionsProvider = ({
   const newHideCaret =
     isLimitReached || (!isMultiSelect && selectedOptions.length > 0);
 
-  // biome-ignore lint/correctness/useExhaustiveDependencies: We explicitly want to run this effect when selectedOptions changes to match the view with the selected options.
   useEffect(() => {
     setHideCaret(newHideCaret);
   }, [newHideCaret, selectedOptions, setHideCaret]);

@navikt/core/react/src/form/combobox2/Combobox2.stories.tsx

@@ -272,7 +272,6 @@ export const Composition = () => {
           : [...prev, option.value],
       );
     },
-    multiple: true,
   };
 
   return (

@navikt/core/react/src/form/combobox2/Combobox2.tests.stories.tsx

@@ -126,7 +126,6 @@ export const OptionMemoization = () => {
       </div>
       <ComboboxRoot
         defaultOpen
-        multiple
         options={groupedOptions}
         value={value}
         onToggleOption={(option) => {

@navikt/core/react/src/form/combobox2/field/ComboboxField.tsx

@@ -28,6 +28,7 @@ const ComboboxField = forwardRef<HTMLButtonElement, ComboboxFieldProps>(
     const [ariaLabel, setAriaLabel] = useState<string>();
     useEffect(() => {
       if (label) {
+        // oxlint-disable-next-line react/set-state-in-effect -- Briefly sets and resets the label as part of the VoiceOver workaround.
         setAriaLabel(label);
         setTimeout(() => setAriaLabel(undefined), 100);
       }

@navikt/core/react/src/form/combobox2/filter/ComboboxFilter.tsx

@@ -38,7 +38,7 @@ export const ComboboxFilter = (props: ComboboxFilterProps) => {
           }}
           onKeyDown={(event) => {
             if (["ArrowLeft", "ArrowRight"].includes(event.key)) {
-              setVirtuallyFocusedOptionValue(""); // Assume you want to edit the input, so remove virtual focus
+              setVirtuallyFocusedOptionValue("");
             }
           }}
           aria-autocomplete="list"

@navikt/core/react/src/form/combobox2/list/ComboboxList.tsx

@@ -1,4 +1,4 @@
-import React from "react";
+import React, { useCallback } from "react";
 import { Listbox } from "../../../utils/components/Listbox/root/ListboxRoot";
 import { useDeferredValue, useEventCallback } from "../../../utils/hooks";
 import { useI18n } from "../../../utils/i18n/i18n.hooks";
@@ -51,16 +51,24 @@ function ComboboxListContent<
 >({ children }: ComboboxListProps<T>) {
   const { virtuallyFocusedOptionValue, filterString } =
     useComboboxPopupContext();
-  const {
-    options,
-    value, // Selected options
-    onToggleOption: originalOnToggleOption,
-  } = useComboboxRootContext();
-  const onToggleOption = useEventCallback(originalOnToggleOption);
+  const { setOpen, options, value, onToggleOption, multiple, triggerRef } =
+    useComboboxRootContext();
+  const memoizedOnToggleOption = useEventCallback(onToggleOption);
   const deferredFilterString = useDeferredValue(filterString);
   const maybeAnnouceHits = useHitsAnnouncer(deferredFilterString);
   const translate = useI18n("Combobox2");
 
+  const localOnToggleOption = useCallback(
+    (option: ComboboxOptionData, isSelected: boolean) => {
+      memoizedOnToggleOption(option, isSelected);
+      if (!multiple) {
+        setOpen(false);
+        triggerRef.current?.focus();
+      }
+    },
+    [memoizedOnToggleOption, multiple, triggerRef, setOpen],
+  );
+
   if (children && typeof children !== "function") {
     return children;
   }
@@ -89,7 +97,7 @@ function ComboboxListContent<
           <ComboboxOption
             key={option.value}
             option={option}
-            onToggleOption={onToggleOption}
+            onToggleOption={localOnToggleOption}
             isSelected={value.includes(option.value)}
             hasVirtualFocus={virtuallyFocusedOptionValue === option.value}
             highlightText={deferredFilterString}
@@ -102,7 +110,7 @@ function ComboboxListContent<
       <ComboboxOption
         key={optOrGroup.value}
         option={optOrGroup}
-        onToggleOption={onToggleOption}
+        onToggleOption={localOnToggleOption}
         isSelected={value.includes(optOrGroup.value)}
         hasVirtualFocus={virtuallyFocusedOptionValue === optOrGroup.value}
         highlightText={deferredFilterString} // TODO: Vurder å kunne slå av dette for bedre ytelse
@@ -118,27 +126,26 @@ function filterOptions<T extends ComboboxOptionData>(
   filterString: string,
 ): (T | ComboboxGroupData<T>)[] {
   const filterStringLowerCase = filterString.toLocaleLowerCase();
-  const results: (T | ComboboxGroupData<T>)[] = [];
 
-  for (const optOrGroup of options) {
-    if ("options" in optOrGroup) {
-      const matchingOptions: T[] = [];
-      for (const option of optOrGroup.options) {
-        if (option.label.toLocaleLowerCase().includes(filterStringLowerCase)) {
-          matchingOptions.push(option);
+  return options
+    .map((optOrGroup) => {
+      if ("options" in optOrGroup) {
+        const matchingOptions = optOrGroup.options.filter((option) =>
+          option.label.toLocaleLowerCase().includes(filterStringLowerCase),
+        );
+        if (matchingOptions.length > 0) {
+          return { ...optOrGroup, options: matchingOptions };
         }
+        return null;
       }
-      if (matchingOptions.length > 0) {
-        results.push({ ...optOrGroup, options: matchingOptions });
+      if (
+        optOrGroup.label.toLocaleLowerCase().includes(filterStringLowerCase)
+      ) {
+        return optOrGroup;
       }
-    } else if (
-      optOrGroup.label.toLocaleLowerCase().includes(filterStringLowerCase)
-    ) {
-      results.push(optOrGroup);
-    }
-  }
-
-  return results;
+      return null;
+    })
+    .filter((option): option is T | ComboboxGroupData<T> => option !== null);
 }
 
 export type { ComboboxListProps };

@navikt/core/react/src/form/combobox2/list/useAnnounce.ts

@@ -86,12 +86,12 @@ function announce(message: string, politeness: Politeness = "polite") {
   }
   // If the message is the same as the current text,
   // append a non-breaking space to force a re-announcement.
-  target.textContent = message === target.textContent ? `${message} ` : message; // eslint-disable-line no-irregular-whitespace
+  target.textContent = message === target.textContent ? `${message} ` : message;
   scheduleClear(politeness, target);
 }
 
 /**
- * Announces a message through a persistently-mounted, visually-hidden live region.
+ * Speaks a message through a persistently-mounted, visually-hidden live region.
  *
  * The polite and assertive regions are created once and kept mounted.
  *

@navikt/core/react/src/form/combobox2/option/highlightSubstring.tsx

@@ -9,7 +9,6 @@ function highlightSubstring(text: string, substring: string) {
   const [rangeStart, rangeEnd] = range;
   return (
     // Aria-label is used to fix testing-library wrongly evaluating the accessible name of the option when highlighting text
-    // biome-ignore lint/a11y/useAriaPropsSupportedByRole: Doesn't matter if it doesn't work in normal browsers
     <span aria-label={text}>
       {text.substring(0, rangeStart)}
       <mark>{text.substring(rangeStart, rangeEnd)}</mark>

@navikt/core/react/src/form/combobox2/overlay/ComboboxOverlay.tsx

@@ -19,7 +19,16 @@ function ComboboxOverlay({ children, mobileHeader }: ComboboxOverlayProps) {
 
   if (isMobile) {
     return (
-      <ComboboxModal open={rootContext.open} onOpenChange={rootContext.setOpen}>
+      <ComboboxModal
+        open={rootContext.open}
+        onOpenChange={(open) => {
+          rootContext.setOpen(open);
+          !open && rootContext.triggerRef.current?.focus(); // This does not work when closing with button
+        }}
+        onOpenChangeComplete={(open) =>
+          !open && rootContext.triggerRef.current?.focus()
+        }
+      >
         {mobileHeader}
         {children}
       </ComboboxModal>
@@ -33,6 +42,7 @@ function ComboboxOverlay({ children, mobileHeader }: ComboboxOverlayProps) {
   return (
     <DismissableLayer
       asChild
+      //safeZone={{ anchor: rootContext.triggerRef.current }}
       onDismiss={(event) => {
         // We don't have trigger as `safeZone` because we want to close when trigger is focused.
         // To avoid immediately re-opening the popup when trigger is clicked (blur closes, click opens),
@@ -45,6 +55,7 @@ function ComboboxOverlay({ children, mobileHeader }: ComboboxOverlayProps) {
           return;
         }
         rootContext.setOpen(false);
+        rootContext.triggerRef.current?.focus();
       }}
       enabled={rootContext.open}
     >
@@ -66,6 +77,7 @@ type ComboboxModalProps = {
   children: React.ReactNode;
   open: boolean;
   onOpenChange: (open: boolean) => void;
+  onOpenChangeComplete: (open: boolean) => void;
 };
 
 function subscribeToResize(callback: () => void) {
@@ -77,7 +89,12 @@ function getVisualViewportHeight() {
   return visualViewport?.height; // Takes into account virtual keyboard etc.
 }
 
-function ComboboxModal({ children, open, onOpenChange }: ComboboxModalProps) {
+function ComboboxModal({
+  children,
+  open,
+  onOpenChange,
+  onOpenChangeComplete,
+}: ComboboxModalProps) {
   const visualViewportHeight = useSyncExternalStore(
     subscribeToResize,
     getVisualViewportHeight,
@@ -95,7 +112,12 @@ function ComboboxModal({ children, open, onOpenChange }: ComboboxModalProps) {
   }, [open]);
 
   return (
-    <Dialog size="small" open={open} onOpenChange={onOpenChange}>
+    <Dialog
+      size="small"
+      open={open}
+      onOpenChange={onOpenChange}
+      onOpenChangeComplete={onOpenChangeComplete}
+    >
       <Dialog.Popup className="aksel-combobox2__modal" position="fullscreen">
         <div
           className="aksel-combobox2__modal-inner"

@navikt/core/react/src/form/combobox2/popup/ComboboxPopup.stories.tsx

@@ -62,7 +62,6 @@ export const Default = () => {
   return (
     <ComboboxRoot
       defaultOpen
-      multiple
       options={options}
       value={value}
       onToggleOption={(option, newSelected) => {
@@ -174,7 +173,6 @@ export const CustomOptionRendering = () => {
   return (
     <ComboboxRoot
       defaultOpen
-      multiple
       options={options}
       value={value}
       onToggleOption={(option, isSelected) => {
@@ -261,7 +259,6 @@ export const ControlledInput = () => {
   return (
     <ComboboxRoot
       defaultOpen
-      multiple
       options={filteredOptions}
       value={value}
       onToggleOption={(option) => {

@navikt/core/react/src/form/combobox2/popup/ComboboxPopup.tsx

@@ -1,5 +1,4 @@
-import React, { useRef, useState } from "react";
-import { useClientLayoutEffect } from "../../../utils-external";
+import React, { useLayoutEffect, useRef, useState } from "react";
 import { Listbox } from "../../../utils/components/Listbox/root/ListboxRoot";
 import { createStrictContext } from "../../../utils/helpers";
 import { useComboboxRootContext } from "../root/ComboboxRoot";
@@ -30,7 +29,7 @@ export const ComboboxPopup = ({ children }: ComboboxPopupProps) => {
   const rootContext = useComboboxRootContext();
   const ref = useRef<HTMLDivElement | null>(null);
 
-  useClientLayoutEffect(
+  useLayoutEffect(
     function onOpen() {
       const canHover = window.matchMedia("(hover: hover)").matches;
 
@@ -86,7 +85,7 @@ export const ComboboxPopup = ({ children }: ComboboxPopupProps) => {
         filterString={filterString}
         setFilterString={(newString) => {
           setFilterString(newString);
-          setVirtuallyFocusedOptionValue(""); // Remove virtual focus when filter string changes
+          setVirtuallyFocusedOptionValue("");
         }}
       >
         {children}

@navikt/core/react/src/form/combobox2/root/ComboboxRoot.tsx

@@ -1,4 +1,4 @@
-import React, { useCallback, useRef, useState } from "react";
+import React, { useRef, useState } from "react";
 import { Floating } from "../../../utils/components/floating/Floating";
 import { cl, createStrictContext } from "../../../utils/helpers";
 import type { FormFieldProps } from "../../useFormField";
@@ -74,8 +74,9 @@ export interface ComboboxRootProps<
   defaultOpen?: boolean;
   /**
    * Whether multiple options can be selected.
+   * @default true
    */
-  multiple?: boolean;
+  multiple?: boolean; // TODO: Hva skal være default?
 }
 
 export interface ComboboxRootContextProps {
@@ -83,10 +84,9 @@ export interface ComboboxRootContextProps {
   setOpen: (newOpen: boolean) => void;
   triggerRef: React.RefObject<HTMLDivElement | null>;
   options: ComboboxRootProps["options"];
-  /** Values of selected options */
   value: ComboboxRootProps["value"];
-  /** Consumer callback */
   onToggleOption: ComboboxRootProps["onToggleOption"];
+  multiple: boolean;
   size: Exclude<ComboboxRootProps["size"], undefined>;
   disabled: ComboboxRootProps["disabled"];
 }
@@ -107,7 +107,7 @@ export function ComboboxRoot<
   value,
   onToggleOption,
   defaultOpen = false,
-  multiple = false,
+  multiple = true,
   size = "medium",
   disabled,
   className,
@@ -125,25 +125,14 @@ export function ComboboxRoot<
     >
       <ComboboxRootContextProvider
         open={open}
-        setOpen={useCallback((newOpen) => {
-          setOpen(newOpen);
-          if (!newOpen) {
-            // queueMicrotask is needed when closing with close button in Dialog
-            queueMicrotask(() => triggerRef.current?.focus());
-          }
-        }, [])}
+        setOpen={setOpen}
         triggerRef={triggerRef}
         options={options}
         value={value}
-        onToggleOption={useCallback(
-          (...args) => {
-            (onToggleOption as ComboboxRootProps["onToggleOption"])(...args);
-            if (!multiple) {
-              setOpen(false);
-            }
-          },
-          [onToggleOption, multiple],
-        )}
+        onToggleOption={
+          onToggleOption as ComboboxRootContextProps["onToggleOption"]
+        }
+        multiple={multiple}
         size={size}
         disabled={disabled}
       >

@navikt/core/react/src/form/combobox2/trigger/ComboboxTrigger.tsx

@@ -28,6 +28,7 @@ const ComboboxTrigger = ({
   return (
     <Floating.Anchor asChild ref={rootContext.triggerRef}>
       <Slot
+        // oxlint-disable-next-line jsx-a11y/role-has-required-aria-props -- aria-controls is not really needed
         role="combobox"
         aria-expanded={readOnly ? undefined : rootContext.open}
         onClick={() => !readOnly && rootContext.setOpen(!rootContext.open)}

@navikt/core/react/src/form/error-summary/ErrorSummary.tsx

@@ -85,7 +85,6 @@ export const ErrorSummary = forwardRef<HTMLDivElement, ErrorSummaryProps>(
     const mergedRef = useMergeRefs(ref, wrapperRef);
 
     return (
-      // biome-ignore lint/a11y/noStaticElementInteractions: Allows focus-calls on div to move focus to heading.
       <div
         ref={mergedRef}
         {...rest}

@navikt/core/react/src/form/file-upload/dropzone/FileUploadDropzone.tsx

@@ -90,8 +90,7 @@ const FileUploadDropzone = forwardRef<
           {description}
         </BodyShort>
       )}
-      {/** biome-ignore lint/a11y/noStaticElementInteractions: Assistive technologies will use the input within.  */}
-      {/** biome-ignore lint/a11y/useKeyWithClickEvents: Keyboard will access input/button within */}
+      {/* oxlint-disable-next-line jsx-a11y/click-events-have-key-events, jsx-a11y/no-static-element-interactions -- Keyboard will access input/button within */}
       <div
         className="aksel-dropzone__area"
         onDragEnter={dropzoneCtx.onDragEnter}

@navikt/core/react/src/form/radio/Radio.tsx

@@ -22,8 +22,7 @@ export const Radio = forwardRef<HTMLInputElement, RadioProps>(
     const { className, description, children } = props;
 
     return (
-      // biome-ignore lint/a11y/noStaticElementInteractions: clickable div for radio card
-      // biome-ignore lint/a11y/useKeyWithClickEvents: clickable div for radio card
+      // oxlint-disable-next-line jsx-a11y/click-events-have-key-events, jsx-a11y/no-static-element-interactions -- clickable div for radio card
       <div
         className={cl(className, "aksel-radio", `aksel-radio--${size}`, {
           "aksel-radio--error": hasError,

@navikt/core/react/src/form/search/Search.tsx

@@ -158,7 +158,7 @@ export const Search = forwardRef<HTMLInputElement, SearchProps>(
       clearButton && !inputProps.disabled && (value ?? internalValue);
 
     return (
-      // biome-ignore lint/a11y/noStaticElementInteractions: Escape key handler for clearing input
+      // oxlint-disable-next-line jsx-a11y/no-static-element-interactions -- Escape key handler for clearing input
       <div
         onKeyDown={(event) => {
           if (event.key !== "Escape") {

@navikt/core/react/src/legacy/stepper/Stepper.tsx

@@ -102,7 +102,6 @@ export const Stepper: StepperComponent = forwardRef<
               className="aksel-stepper__item"
               data-interactive={isInteractive}
               data-color={isInteractive ? undefined : "neutral"}
-              // biome-ignore lint/suspicious/noArrayIndexKey: Unsure how to fix gracefully
               key={index + (children?.toString?.() ?? "")}
             >
               <span className="aksel-stepper__line aksel-stepper__line--1" />

@navikt/core/react/src/lookup/Lookup.tsx

@@ -89,7 +89,6 @@ export const Lookup = forwardRef<HTMLSpanElement, LookupProps>(
 
     return (
       <>
-        {/** biome-ignore lint/a11y/useSemanticElements: We use a span since the built-in button styling does not allow for proper line-break. Lookup-text needs to be able to "flow" across multiple lines.  */}
         <span
           {...rest}
           role="button"

@navikt/core/react/src/pagination/root/PaginationRoot.tsx

@@ -172,7 +172,7 @@ const PaginationRoot = forwardRef<HTMLElement, PaginationProps>(
               return Number.isNaN(n) ? (
                 <li
                   className="aksel-pagination__ellipsis"
-                  // biome-ignore lint/suspicious/noArrayIndexKey: Using index as key for ellipsis items
+                  // oxlint-disable-next-line react/no-array-index-key -- Using index as key for ellipsis items
                   key={`${step}-${i}`}
                 >
                   <BodyShort

@navikt/core/react/src/process/Process.tsx

@@ -149,7 +149,7 @@ export const Process: ProcessComponent = forwardRef<
       <ol
         ref={mergedRef}
         data-color="info"
-        // biome-ignore lint/a11y/noRedundantRoles: See comment above
+        // oxlint-disable-next-line jsx-a11y/no-redundant-roles -- See comment above
         role="list"
         {...restProps}
         className={cl("aksel-process", className)}
@@ -218,7 +218,7 @@ export const ProcessEvent = forwardRef<HTMLLIElement, ProcessEventProps>(
     const { syncAriaControls, hideStatusText, rootId } = useProcessContext();
 
     // syncAriaControls is already memoized with useCallback
-    // biome-ignore lint/correctness/useExhaustiveDependencies: We want to run this only when status changes
+    // oxlint-disable-next-line react/exhaustive-deps -- We want to run this only when status changes
     useEffect(syncAriaControls, [status]); // eslint-disable-line react-hooks/exhaustive-deps
 
     const isActive = status === "active";

@navikt/core/react/src/table/animate-height/TableAnimateHeightInternal.tsx

@@ -98,7 +98,6 @@ const TableAnimateHeightInternal: React.FC<AnimateHeightProps> = ({
   const [useTransitions, setUseTransitions] = useState<boolean>(false);
   const didHideOnMount = useRef(false);
 
-  // biome-ignore lint/correctness/useExhaustiveDependencies: Only run this on mount
   useEffect(() => {
     /**
      * We check for multiple runs caused by React.StrictMode.
@@ -118,7 +117,6 @@ const TableAnimateHeightInternal: React.FC<AnimateHeightProps> = ({
   }, []);
 
   // ------------------ Height update
-  // biome-ignore lint/correctness/useExhaustiveDependencies: This should be explicitly run only on height change
   useEffect(() => {
     if (height !== prevHeight.current && contentElement.current) {
       showContent(contentElement.current, prevHeight.current);

@navikt/core/react/src/tabs/panel/TabsPanel.tsx

@@ -35,7 +35,6 @@ const TabsPanel = forwardRef<HTMLDivElement, TabsPanelProps>(
         {...rest}
         className={cl("aksel-tabs__tabpanel", className)}
         role="tabpanel"
-        // biome-ignore lint/a11y/noNoninteractiveTabindex: TabPanel is a non-interactive element that requires a tabindex for keyboard navigation.
         tabIndex={0}
         aria-labelledby={rest["aria-labelledby"] ?? ctx.labelledbyId}
         id={id ?? ctx.id}

@navikt/core/react/src/timeline/row/TimelineRow.tsx

@@ -75,7 +75,7 @@ const TimelineRowBase = forwardRef<HTMLOListElement, TimelineRowProps>(
             <div className="aksel-timeline__row-label">{label}</div>
           ))}
 
-        {/** biome-ignore lint/a11y/noStaticElementInteractions: onKeyDown just captures events on child-elements here. Regular interaction patterns still works as expected. */}
+        {/* oxlint-disable-next-line jsx-a11y/no-static-element-interactions -- onKeyDown just captures events on child-elements here. Regular interaction patterns still works as expected */}
         <div
           className={cl("aksel-timeline__row", {
             "aksel-timeline__row--active": activeRow === elementRefState,

@navikt/core/react/src/types/theme.d.ts

@@ -1,7 +1,7 @@
 /* eslint-disable @typescript-eslint/no-empty-object-type */
 import type { AkselColorRole } from "@navikt/ds-tokens/types";
 
-// biome-ignore lint/suspicious/noEmptyInterface: Users can/will augment this interface
+/* Users can/will augment this interface */
 export interface CustomAkselColor {}
 
 export type AkselColor = AkselColorRole | keyof CustomAkselColor;

@navikt/core/react/src/utils-external/hooks/useId.ts

@@ -7,11 +7,9 @@ import React, { useEffect, useState } from "react";
 
 let globalId = 0;
 function useGlobalId(idOverride?: string): string | undefined {
-  // biome-ignore lint/correctness/useHookAtTopLevel: At runtime, `useGlobalId` is invariant.
   const [defaultId, setDefaultId] = useState(idOverride);
   const id = idOverride || defaultId;
 
-  // biome-ignore lint/correctness/useHookAtTopLevel: At runtime, `useGlobalId` is invariant.
   useEffect(() => {
     if (defaultId == null) {
       // Fallback to this default id when possible.
@@ -19,7 +17,7 @@ function useGlobalId(idOverride?: string): string | undefined {
       // We can't use it server-side.
       // If you want to use random values please consider the Birthday Problem: https://en.wikipedia.org/wiki/Birthday_problem
       globalId += 1;
-      setDefaultId(`aksel-id-${globalId}`); // eslint-disable-line react-hooks/set-state-in-effect
+      setDefaultId(`aksel-id-${globalId}`);
     }
   }, [defaultId]);
   return id;
@@ -39,7 +37,7 @@ function useId(idOverride?: string): string {
     const reactId = maybeReactUseId();
     return idOverride ?? reactId.replace(/(:)/g, "");
   }
-  // biome-ignore lint/correctness/useHookAtTopLevel: `useId` is invariant at runtime.
+  // oxlint-disable-next-line react/rules-of-hooks -- `useId` is invariant at runtime
   return useGlobalId(idOverride) ?? "";
 }
 

@navikt/core/react/src/utils/components/HighlightText/HighlightText.tsx

@@ -22,7 +22,6 @@ const HighlightText = ({ text, children }: HighlightTextProps) => {
   const end = children.substring(textIndex + text.length);
   return (
     // aria-label is used to fix testing-library wrongly evaluating the accessible name of the option when highlighting text
-    // biome-ignore lint/a11y/useAriaPropsSupportedByRole: Doesn't matter if it doesn't work in the browser
     <span aria-label={children}>
       {start}
       {match && <mark>{match}</mark>}

@navikt/core/react/src/utils/components/Listbox/Listbox.stories.tsx

@@ -240,7 +240,7 @@ const MyMemoizedOption = React.memo(
     hasVirtualFocus,
     onSelect,
   }: MyMemoizedOptionProps) => {
-    //console.log(Date.now(), "Rendering option", value); // eslint-disable-line react-hooks/purity
+    //console.log(Date.now(), "Rendering option", value); // oxlint-disable-line react-hooks-js/purity
     return (
       <Listbox.Option
         key={value}

@navikt/core/react/src/utils/components/Listbox/group/ListboxGroup.tsx

@@ -11,7 +11,6 @@ function ListboxGroup({ label, children }: ListboxGroupProps) {
   const labelId = useId();
 
   return (
-    // biome-ignore lint/a11y/useSemanticElements: Fieldset is not generic enough
     <div
       role="group"
       className="aksel-listbox__group"

@navikt/core/react/src/utils/components/Listbox/input-slot/ListboxInputSlot.tsx

@@ -26,6 +26,7 @@ const ListboxInputSlot = ({
       }
       // @ts-expect-error - You are meant to use an <input>, but Slot doesn't know that.
       autoComplete="off"
+      // oxlint-disable-next-line jsx-a11y/role-has-required-aria-props -- Remaining aria props are set on the child element, which Slot merges with these props
       role="combobox"
       data-aksel-listbox-input
     >

@navikt/core/react/src/utils/components/Listbox/options/ListboxOptions.tsx

@@ -1,4 +1,4 @@
-/** biome-ignore-all lint/a11y/useKeyWithMouseEvents: We know what we are doing */
+/* oxlint-disable jsx-a11y/mouse-events-have-key-events -- We know what we are doing */
 import React from "react";
 import { cl } from "../../../helpers";
 import { useMedia } from "../../../hooks";

@navikt/core/react/src/utils/components/Listbox/root/ListboxRoot.tsx

@@ -1,4 +1,4 @@
-/** biome-ignore-all lint/a11y/noStaticElementInteractions: We know what we are doing */
+/* oxlint-disable jsx-a11y/no-static-element-interactions -- We know what we are doing */
 import React, { forwardRef } from "react";
 import { useId } from "../../../../utils-external";
 import { cl } from "../../../helpers";

@navikt/core/react/src/utils/components/dismissablelayer/DismissableLayer.tests.stories.tsx

@@ -135,7 +135,7 @@ export const InteractOutside: Story = {
         <div
           data-testid="outside-focusable"
           style={{ padding: "1rem" }}
-          // biome-ignore lint/a11y/noNoninteractiveTabindex: testing only
+          // oxlint-disable-next-line jsx-a11y/no-noninteractive-tabindex -- testing only
           tabIndex={0}
         />
       </div>
@@ -182,7 +182,7 @@ export const DisableOutsidePointerEvents: Story = {
         <div
           data-testid="outside-focusable"
           style={{ padding: "1rem" }}
-          // biome-ignore lint/a11y/noNoninteractiveTabindex: testing only
+          // oxlint-disable-next-line jsx-a11y/no-noninteractive-tabindex -- testing only
           tabIndex={0}
         />
       </div>
@@ -212,7 +212,7 @@ export const SafeZone: Story = {
     return (
       <div>
         <div
-          // biome-ignore lint/a11y/noNoninteractiveTabindex: testing only
+          // oxlint-disable-next-line jsx-a11y/no-noninteractive-tabindex -- testing only
           tabIndex={0}
           ref={setSafeAnchor}
           data-testid="safe-anchor"
@@ -568,7 +568,7 @@ export const PreventEvents: Story = {
         <div
           data-testid="outside-focusable"
           style={{ padding: "1rem" }}
-          // biome-ignore lint/a11y/noNoninteractiveTabindex: testing only
+          // oxlint-disable-next-line jsx-a11y/no-noninteractive-tabindex -- testing only
           tabIndex={0}
         />
       </div>

@navikt/core/react/src/utils/components/dismissablelayer/DismissableLayer.tsx

@@ -340,6 +340,7 @@ const DismissableLayer = forwardRef<HTMLDivElement, DismissableLayerProps>(
       if (disableOutsidePointerEvents) {
         if (context.layersWithOutsidePointerEventsDisabled.size === 0) {
           originalBodyPointerEvents = ownerDoc.body.style.pointerEvents;
+          // oxlint-disable-next-line react/immutability -- Intentional DOM mutation in an effect, restored on cleanup.
           ownerDoc.body.style.pointerEvents = "none";
         }
         context.layersWithOutsidePointerEventsDisabled.add(node);
@@ -365,7 +366,6 @@ const DismissableLayer = forwardRef<HTMLDivElement, DismissableLayerProps>(
      *
      * We depend on `enabled` to clean up when the layer is disabled.
      */
-    // biome-ignore lint/correctness/useExhaustiveDependencies: We need to clean up after enabled changes.
     useEffect(() => {
       return () => {
         if (!node) {

@navikt/core/react/src/utils/components/focus-guards/FocusGuards.tsx

@@ -36,7 +36,7 @@ function FocusGuards({
     <React.Fragment>
       <span
         ref={startRefCombined}
-        // biome-ignore lint/a11y/noNoninteractiveTabindex: All focus guards are non-interactive and should be tabbable
+        // oxlint-disable-next-line jsx-a11y/no-noninteractive-tabindex -- All focus guards are non-interactive and should be tabbable
         tabIndex={0}
         style={visuallyHidden}
         data-aksel-focus-guard=""
@@ -44,7 +44,7 @@ function FocusGuards({
       {children}
       <span
         ref={endRefCombined}
-        // biome-ignore lint/a11y/noNoninteractiveTabindex: All focus guards are non-interactive and should be tabbable
+        // oxlint-disable-next-line jsx-a11y/no-noninteractive-tabindex -- All focus guards are non-interactive and should be tabbable
         tabIndex={0}
         style={visuallyHidden}
         data-aksel-focus-guard=""

@navikt/core/react/src/utils/components/textarea-autosize/TextareaAutoSize.tsx

@@ -223,7 +223,6 @@ const TextareaAutosize = forwardRef<HTMLTextAreaElement, TextareaAutosizeProps>(
       syncHeight();
     });
 
-    // biome-ignore lint/correctness/useExhaustiveDependencies: Since value is an external prop, we want to reset the renders on every time it changes, even when it is undefined or empty.
     useEffect(() => {
       renders.current = 0;
     }, [value]);

@navikt/core/react/src/utils/date/parse-dates.test.ts

@@ -1,3 +1,4 @@
+/* oxlint-disable vitest/expect-expect, vitest/valid-expect -- assertions are made through the `check` helpers */
 import { getMonth } from "date-fns/getMonth";
 import { nb } from "date-fns/locale/nb";
 import { describe, expect, test } from "vitest";
@@ -5,29 +6,24 @@ import { isValidDate } from "./check-dates";
 import { parseDate } from "./parse-date";
 
 const check = (inp: string) =>
-  // eslint-disable-next-line vitest/valid-expect
   expect(isValidDate(parseDate(inp, new Date(), nb, "date", false)));
 
 const checkTwoDigit = (inp: string) =>
-  // eslint-disable-next-line vitest/valid-expect
   expect(isValidDate(parseDate(inp, new Date(), nb, "date", true)));
 
 const parse = (inp: string) => parseDate(inp, new Date(), nb, "date", false);
 
 describe("Parse date-inputs with 4-digit years", () => {
-  // eslint-disable-next-line vitest/expect-expect
   test("No spaces", () => {
     check("11052022").toBeTruthy();
     check("15052022").toBeTruthy();
   });
 
-  // eslint-disable-next-line vitest/expect-expect
   test(". divider", () => {
     check("1.5.2022").toBeTruthy();
     check("11.05.2022").toBeTruthy();
   });
 
-  // eslint-disable-next-line vitest/expect-expect
   test("/ divider", () => {
     check("1/5/2022").toBeTruthy();
     check("10/5/2022").toBeTruthy();
@@ -35,7 +31,6 @@ describe("Parse date-inputs with 4-digit years", () => {
     check("10/05/2022").toBeTruthy();
   });
 
-  // eslint-disable-next-line vitest/expect-expect
   test("- divider", () => {
     check("1-5-2022").toBeTruthy();
     check("10-5-2022").toBeTruthy();
@@ -45,19 +40,16 @@ describe("Parse date-inputs with 4-digit years", () => {
 });
 
 describe("Parse date-inputs with 2-digit years", () => {
-  // eslint-disable-next-line vitest/expect-expect
   test("No spaces", () => {
     checkTwoDigit("110522").toBeTruthy();
     checkTwoDigit("150522").toBeTruthy();
   });
 
-  // eslint-disable-next-line vitest/expect-expect
   test(". divider", () => {
     checkTwoDigit("1.5.22").toBeTruthy();
     checkTwoDigit("11.05.22").toBeTruthy();
   });
 
-  // eslint-disable-next-line vitest/expect-expect
   test("/ divider", () => {
     checkTwoDigit("1/5/22").toBeTruthy();
     checkTwoDigit("10/5/22").toBeTruthy();
@@ -65,7 +57,6 @@ describe("Parse date-inputs with 2-digit years", () => {
     checkTwoDigit("10/05/22").toBeTruthy();
   });
 
-  // eslint-disable-next-line vitest/expect-expect
   test("- divider", () => {
     checkTwoDigit("1-5-22").toBeTruthy();
     checkTwoDigit("10-5-22").toBeTruthy();
@@ -73,14 +64,12 @@ describe("Parse date-inputs with 2-digit years", () => {
     checkTwoDigit("10-05-22").toBeTruthy();
   });
 
-  // eslint-disable-next-line vitest/expect-expect
   test("Dissallow 1 and 3 digit years", () => {
     checkTwoDigit("11052").toBeFalsy();
     checkTwoDigit("1105222").toBeFalsy();
     checkTwoDigit("1105999").toBeFalsy();
   });
 
-  // eslint-disable-next-line vitest/expect-expect
   test("Dissallow date before year 1000", () => {
     checkTwoDigit("11050999").toBeFalsy();
     checkTwoDigit("11050010").toBeFalsy();

@navikt/core/react/src/utils/helpers/className.ts

@@ -1,4 +1,3 @@
-/** biome-ignore-all lint/suspicious/noAssignInExpressions: Because why not? */
 type ClassValue =
   | ClassArray
   | ClassDictionary

@navikt/core/react/src/utils/helpers/create-strict-context.tsx

@@ -65,8 +65,7 @@ function createStrictContext<T>(options: {
   Context.displayName = name;
 
   function Provider({ children, ...context }: ProviderProps<T>) {
-    // biome-ignore lint/correctness/useExhaustiveDependencies: Object.values(context) includes all dependencies.
-    const value = React.useMemo(() => context, Object.values(context)) as T; // eslint-disable-line react-hooks/exhaustive-deps
+    const value = React.useMemo(() => context, Object.values(context)) as T; // oxlint-disable-line react/exhaustive-deps, react/use-memo
 
     return <Context.Provider value={value}>{children}</Context.Provider>;
   }

@navikt/core/react/src/utils/hooks/useSyncExternalStoreShim.ts

@@ -1,9 +1,5 @@
-/* eslint-disable react-hooks/set-state-in-effect */
-/* eslint-disable react-hooks/exhaustive-deps */
-/** biome-ignore-all lint/correctness/useExhaustiveDependencies: Explained bellow */
-/* eslint-disable react-hooks/immutability */
-/* eslint-disable react-hooks/globals */
-/** biome-ignore-all lint/complexity/useLiteralKeys: Explained bellow */
+/* oxlint-disable react/exhaustive-deps -- Explained bellow */
+/* oxlint-disable react-hooks-js/globals */
 /**
  * Copyright (c) Meta Platforms, Inc. and affiliates.
  *

@navikt/core/react/src/utils/hooks/useValueAsRef.ts

@@ -6,7 +6,7 @@ import { useRefWithInit } from "./useRefWithInit";
 function useValueAsRef<T>(value: T) {
   const latest = useRefWithInit(createLatestRef, value).current;
 
-  latest.next = value; // eslint-disable-line react-hooks/immutability
+  latest.next = value;
 
   // eslint-disable-next-line react-hooks/exhaustive-deps
   useClientLayoutEffect(latest.effect);

@navikt/core/react/src/utils/i18n/locales.test.tsx

@@ -1,4 +1,3 @@
-/* eslint-disable vitest/expect-expect */
 import { describe, expect, test } from "vitest";
 import type { Translations } from "./i18n.types";
 import en from "./locales/en";
@@ -7,52 +6,62 @@ import nn from "./locales/nn";
 
 type NestedObject = Record<string, string | Record<string, string>>;
 
-function checkValues(obj: Translations | NestedObject) {
-  Object.entries(obj).forEach(
-    ([key, value]: [string, string | NestedObject]) => {
-      if (key === "dateLocale") {
-        return;
-      }
-      if (typeof value === "object") {
-        checkValues(value);
-      } else {
-        expect(value).toBeTypeOf("string");
-        expect(value).not.toBe("");
-      }
-    },
-  );
+/** Flattens nested translations to `[path, value]` pairs, skipping `dateLocale`. */
+function flattenTranslations(
+  obj: Translations | NestedObject,
+  prefix = "",
+): [string, unknown][] {
+  const entries: [string, unknown][] = [];
+
+  for (const [key, value] of Object.entries(obj)) {
+    if (key === "dateLocale") {
+      continue;
+    }
+
+    const path = prefix ? `${prefix}.${key}` : key;
+    if (typeof value === "object") {
+      entries.push(...flattenTranslations(value as NestedObject, path));
+    } else {
+      entries.push([path, value]);
+    }
+  }
+
+  return entries;
 }
 
-function checkTranslationPlaceholders(
-  baseTranslations: Translations | NestedObject, // Translations to check against
-  translations: Translations | NestedObject, // Translations to check
-) {
-  Object.entries(baseTranslations).forEach(
-    ([key, baseVal]: [string, string | NestedObject]) => {
-      if (key === "dateLocale") {
-        return;
-      }
-      if (typeof baseVal === "object") {
-        checkTranslationPlaceholders(baseVal, translations[key]);
-      } else {
-        const correctPlaceholders = baseVal.match(/{[^}]*}/g) || [];
-        const transPlaceholders = translations[key].match(/{[^}]*}/g) || [];
-        expect(
-          transPlaceholders.sort(),
-          `Wrong placeholders in "${translations[key]}" (key=${key})`,
-        ).toEqual(correctPlaceholders.sort());
-      }
-    },
-  );
+function getPlaceholders(value: unknown) {
+  return (typeof value === "string" ? value.match(/{[^}]*}/g) : null) ?? [];
 }
 
 describe("Locale", () => {
-  test("NB should have no empty strings", () => checkValues(nb));
-  test("NN should have no empty strings", () => checkValues(nn));
-  test("EN should have no empty strings", () => checkValues(en));
+  test.each([
+    ["NB", nb],
+    ["NN", nn],
+    ["EN", en],
+  ])("%s should have no empty strings", (_, locale) => {
+    for (const [path, value] of flattenTranslations(locale)) {
+      expect({ path, type: typeof value }).toEqual({ path, type: "string" });
+      expect({ path, empty: value === "" }).toEqual({ path, empty: false });
+    }
+  });
 
-  test("NN should have the same placeholders as NB", () =>
-    checkTranslationPlaceholders(nb, nn));
-  test("EN should have the same placeholders as NB", () =>
-    checkTranslationPlaceholders(nb, en));
+  test.each([
+    ["NN", nn],
+    ["EN", en],
+  ])("%s should have the same placeholders as NB", (_, locale) => {
+    const translations = new Map(flattenTranslations(locale));
+
+    for (const [path, baseValue] of flattenTranslations(nb)) {
+      const value = translations.get(path);
+      expect({
+        path,
+        value,
+        placeholders: getPlaceholders(value).sort(),
+      }).toEqual({
+        path,
+        value,
+        placeholders: getPlaceholders(baseValue).sort(),
+      });
+    }
+  });
 });

README.md

@@ -30,7 +30,7 @@ For å komme i gang, se [Aksel dokumentasjonen](https://aksel.nav.no/grunnleggen
 | `yarn dev`       | Starter dokumentasjonssiden                |
 | `yarn storybook` | Starter Storybook                          |
 | `yarn test`      | Kjører alle tester                         |
-| `yarn lint`      | Kjører ESLint, Stylelint og Biome          |
+| `yarn lint`      | Kjører Oxlint og Stylelint                 |
 | `yarn clean`     | Fjerner genererte filer                    |
 | `yarn changeset` | Oppretter en ny versjon.                   |