- install.sh: POSIX sh installer that detects OS/arch (incl. Rosetta),
resolves the newest vX.Y.Z release via the GitHub API (skipping
ownership-snapshot-current), verifies SHA256SUMS, sanity-runs the
binary, and installs atomically into ~/.local/bin without sudo.
Supports --version/--dir and IDX_* env overrides; prints a PATH
hint, a NixOS flake suggestion, and helper-tool install hints
instead of calling package managers.
- scripts/install-sh-test.sh: fixture tests against a local fake
release server (latest, pinned, piped, checksum mismatch, missing
release, unsupported OS, PATH hint, reinstall).
- ci.yml: install-script job (ShellCheck, sh + dash on Linux, sh on
macOS).
- release.yml: attach install.sh to each release.
- README + docs/INSTALL.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017a5Cv5Z1NzdYKgKnTiAF4E
