uhhm/buuh

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Bendik Aagaard LynghaugandClaude Fable 5 ce1ec9e4a9 rebrand: buuh — a friendly public fork under the uhhm org

Packages renamed to the @uhhm scope (@uhhm/buuh, @uhhm/buuh-html,
@uhhm/buuh-component, @uhhm/buuh-devtools, @uhhm/buuh-migrate,
@uhhm/bankai). Scoping is load-bearing twice over: npm routes registries
per scope so @uhhm/* resolves against project.uhhm.no while everything
else stays on npmjs, and it means this fork never squats upstream's
names anywhere. The codemod now migrates choo v7 apps to the @uhhm
names. README rewritten with the fork framing and full upstream credit;
the choojs RFC moves to docs/upstream-rfc-draft.md, in the drawer for if
this work ever goes home. API unchanged — choo() is still choo().

Also: Gitea Actions CI + release workflows (npm publish to the uhhm
registry on tag push, CDN bundle uploaded as a generic package),
npm run bundle producing dist-cdn/buuh.js (the whole framework as one
minified ES module for import-map use), docs/publishing.md explaining
what Gitea Packages is (a real npm registry) and is not (a CDN — serve
the bundle from a static host with module-safe MIME instead), and
onload.js constructing window.MutationObserver to match its own guard
(surfaced by smoke-testing the bundle outside a full browser).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014NgfSjHE11oFpoSnLVKLXd

2026-09-08 19:55:20 +02:00

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Migrating a choo v7 app to v8

The API you know is intact: choo(), app.use, app.route, app.mount, app.toString, emit, stores, state.events. What changed is the plumbing: ESM everywhere, new package names, no compile step, and a platform baseline of Node ≥ 24 + Baseline Widely Available browsers.

The fast path

$ npx @uhhm/buuh-migrate .          # rewrite in place
$ npx @uhhm/buuh-migrate --dry .    # or report only

The codemod converts simple top-level CJS to ESM, remaps specifiers, and prints a note for everything it won't guess at. Then:

Add "type": "module" to package.json.
Swap dependencies for @uhhm/buuh, @uhhm/buuh-html, and friends.
Run your app. Read the console: hydration now tells you when server and client markup disagree.

Specifier map

v7	v8
`choo`	`@uhhm/buuh`
`choo/html`, `nanohtml`	`@uhhm/buuh-html`
`nanohtml/raw`	`@uhhm/buuh-html/raw`
`nanomorph`	`@uhhm/buuh-html/morph`
`nanocomponent`, `choo/component`	`@uhhm/buuh-component`
`choo-devtools`	`@uhhm/buuh-devtools`
`choo-lazy-route`	`lazy()` from `@uhhm/buuh`
`nanobus`, `nanorouter`, `nanohref`, `nanotiming`	built into `@uhhm/buuh`
`nanoquery`	built in (`state.query`); use `URLSearchParams` elsewhere
`nanoraf`, `nanoassert`, `nanolru`	retired — platform/built-in

Behavior changes to know about

URLs decode once, and never crash. A literal % in a path routed v7 into a URIError; v8 keeps the raw segment. Params are no longer double-decoded (%2540 → %40, not @). Routes and locations are NFC-normalized, so café matches however the é was composed. state.href is decoded for reading.
Event handlers never serialize. v7's server renderer emitted onclick=""; v8 emits nothing — handlers are behavior, not markup.
Whitespace is preserved as authored in browser renders (v7's browser transform collapsed it). Server and browser output are now byte-identical, which is what makes hydration adoption work.
mount() hydrates. First render adopts server DOM in place and warns on real mismatches; <script> tags and whitespace are ignored.
toString() got stricter, toStream() got capable. Sync renders behave exactly as v7. Async content — state.prefetch promises, lazy routes, promise-valued template holes — requires toStream(), and toString() says so instead of misrendering.
Views can't return arrays (unchanged from v7) and document-level roots (html\…``) work in the browser renderer too.

Things that moved to bankai

sheetify → put a style.css next to your entry (client-only by construction). split-require → native import() + lazy(). bankai start/build/serve/inspect replace the v9 pipeline; HTTP/2 push never shipped and is dead in browsers — bankai v10 sends 103 Early Hints instead.

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