manueljpconde makes Mike speak five European languages

The mikeEU fork adds a built-from-scratch multilingual layer, so the tool can run in English, Portuguese, Spanish, French, or German.

i18n

manueljpconde has wired language switching into Mike. Users pick their language from a switcher in the interface, and the choice sticks to their profile across sessions rather than resetting each login. Five languages are live today: English, Portuguese, Spanish, French, and German.

Notably, the team didn't reach for an off-the-shelf translation library - they wrote their own lightweight system to manage the text. Coverage now reaches login and signup, account settings, the chat input, model selection, document upload, and the sidebar. It's not finished: some screens haven't been translated yet, and where a language is missing a phrase the app quietly falls back to English rather than showing a blank. That's the sensible default, and it means nothing breaks while the translations fill in.

So what Worth a look for any firm or legal-ops team serving clients across European languages and weighing whether Mike can meet non-English users where they are.

View this fork on GitHub →

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Commits in this thread

5 commits from manueljpconde/mikeEU, oldest first. Source extracted verbatim from the harvested git log.

SHA	Subject	Author	Date
`346b8197`	feat: add localization support for en/pt/es/fr/de (#4)	Manuel Conde	2026-05-10	↗ GitHub
commit body Adds i18n infrastructure (thin custom + native Intl, no library) covering auth pages, sidebar nav, language switcher, and common labels across the five supported locales. English is canonical fallback at every layer. - Schema: user_profiles.locale text column with named CHECK constraint - Backend: PATCH /user/profile accepts/persists locale with allowlist validation - Frontend: server-side locale resolution (cookie -> Accept-Language -> en) in root layout; client I18nProvider for runtime switching; ProfileLocaleSync applies authenticated profile.locale one-way - Cookie 'mike_locale' (non-httpOnly, Path=/, Max-Age=1y, SameSite=Lax) - Catalog validator with structural + placeholder + plural-shape checks - 51 automated tests (46 frontend + 5 backend) on pure logic; React surface covered manually - Coupled allowlist triple flagged: schema CHECK / backend SUPPORTED_LOCALES / frontend SupportedLocale must move together Spec: https://github.com/manueljpconde/mikeEU/issues/4#issuecomment-4414976968 Plan: https://github.com/manueljpconde/mikeEU/issues/4#issuecomment-4414987693 GO: https://github.com/manueljpconde/mikeEU/issues/4#issuecomment-4415157201 Closes #4
`cb6b9a2f`	fix(i18n): four review findings on PR #10	Manuel Conde	2026-05-10	↗ GitHub
commit body 1. npm test scripts: replace quoted-glob args (which tsx received literally and didn't expand on bash 3.2) with a Node-based test discovery script per repo. Both `npm test --prefix frontend` and `npm test --prefix backend` now run the suites correctly. 2. Validator now rejects duplicate top-level JSON keys via a state-machine raw-text scan (findDuplicateTopLevelKeys), restoring the contract promised in spec rule 4. JSON.parse silently dedupes; this catches editor mistakes before runtime sees the deduped catalog. 3. Signup persists the active i18n locale alongside name/organisation so a guest who selected pt/es/fr/de doesn't get snapped back to en when ProfileLocaleSync applies the (default 'en') profile after signup. 4. Client setLocale now syncs document.documentElement.lang via useEffect on locale change. SSR sets it once; the effect keeps it in sync after user-driven switches. Tests: frontend 55/55 (added 9 in findDuplicateTopLevelKeys.test.ts), backend 34/34. Both `npm test` and `npm run lint:catalogs` runnable without manual glob expansion.
`46c379ca`	Merge pull request #10 from manueljpconde/feature/4-implement-localization-for-supported-app-loca	Manuel Conde	2026-05-10	↗ GitHub
feat: add localization support for en/pt/es/fr/de
`93b5b2bd`	Expand i18n coverage across main surfaces	Manuel Conde	2026-05-10	↗ GitHub
`b6a1762d`	Merge pull request #14 from manueljpconde/codex/i18n-main-surfaces	Manuel Conde	2026-05-10	↗ GitHub
[codex] Expand i18n coverage across main surfaces

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