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For base64 (and hex) in JavaScript, use the native Uint8Array.fromBase64()/toBase64()/setFromBase64() methods instead of btoa/atob or Buffer. Works in Deno and the browser.

When integrating Add to Home Screen (a2hs), passkeys, or web push into a web frontend, use the @kuboon/browser-how-to library to detect support, escape in-app browsers, and guide users.

Pin GitHub Actions to current, non-deprecated major versions when writing or editing workflows.

When initializing a new project, use Deno (not Node.js) and Remix v3 as the web framework, following the deno-remix-reference patterns.

When writing a freely-typed text input in @remix-run/ui (Remix v3), use defaultValue= instead of value= or it will race the framework's controlled-value reflection and become uneditable.

When building admin-only features, give admin users a frontend-only 一般/admin view switch that defaults to 一般, so one account can eyeball both UIs. The backend keeps authorizing as admin and never reads the toggle.

When a Deno dependency update is blocked by minimumDependencyAge, exclude the self-published @kuboon scope via minimumDependencyAge.exclude (Deno 2.9+) instead of lowering the age or passing --min-dep-age 0.

Upgrade a Remix v3 project across beta and rc boundaries, currently up to 3.0.0-rc.2: the @remix-run/* version table for each hop plus every breaking change, including the ones the compiler will not catch — such as ui@0.8.0 renaming every rmx-* DOM attribute to data-rmx-*.

Run @remix-run/data-table migrations from Deno: remix.json db config, timestamped up.sql/down.sql directories, deno task wiring, the Deno-specific traps, and — for Turso/libSQL, which remix db cannot drive — the CLI shipped by @remix-kbn/data-table-sqlite-turso.

When a PR is open and there is more work to do, stack the next PR on its branch instead of waiting for the merge or restarting from main: the layering rule, gh stack commands, and bottom-up merge semantics.