terminal-oscilloscope: init at 0.1.0-unstable-2026-04-07

[sophronesis]

Terminal-based oscilloscope with CRT phosphor physics written in Nim. Captures live system audio via PipeWire/PulseAudio and renders waveforms with phosphor persistence, bloom, and decay trails. Supports Y-T (time-domain) and X-Y (Lissajous) display modes using Unicode half-block characters for 2x vertical resolution.

Homepage: https://github.com/rolandnsharp/terminal-oscilloscope

Runtime dependencies: ffmpeg (dlopen'd libavformat/libavdevice for audio capture), wireplumber (wpctl for audio source discovery).

Things done

• Built on platform:
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• Tested, as applicable:
  • NixOS tests in nixos/tests.
  • Package tests at passthru.tests.
  • Tests in lib/tests or pkgs/test for functions and "core" functionality.
• Ran nixpkgs-review on this PR. See nixpkgs-review usage.
• Tested basic functionality of all binary files, usually in ./result/bin/.
• Nixpkgs Release Notes
  • Package update: when the change is major or breaking.
• NixOS Release Notes
  • Module addition: when adding a new NixOS module.
  • Module update: when the change is significant.
• Fits CONTRIBUTING.md, pkgs/README.md, maintainers/README.md and other READMEs.

[sophronesis]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 507228
Commit: 3b75e7c6057c174528380eec8272ed2dc6a0b187

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x86_64-linux

✅ 1 package built:

• terminal-oscilloscope

[sophronesis]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 507228
Commit: 3b75e7c6057c174528380eec8272ed2dc6a0b187

---

x86_64-linux

✅ 1 package built:

• terminal-oscilloscope

[sophronesis]

force-pushed: message-only amend to add the Assisted-by: trailer required by the Automation/AI policy. the commits here predate that policy landing on master (#514587, merged 2026-05-18), so they only carried a Co-Authored-By line, which the policy explicitly says does not satisfy the requirement.

no code changed - the tree is byte-identical, only commit messages differ. doing this across my open PRs after the note on #511328.

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_{disclosure per the same policy: this comment was drafted with Claude Code (claude-opus-5).}

[sophronesis]

force-pushed: bumped the unstable pin and squashed to a single init commit.

• 0.1.0-unstable-2026-04-05 -> 0.1.0-unstable-2026-04-07 (rev cdd3523 -> f2a94be, 5 commits upstream)
• kept the 0.1.0- prefix deliberately: osc.nimble declares version = "0.1.0", so dropping it to a bare 0-unstable- would have been a version downgrade in nix's ordering
• lock.json is unchanged - no nim dependency changes in that range
• Assisted-by: trailer added per the Automation/AI policy

Rebuilt locally with nix-build -A terminal-oscilloscope on x86_64-linux. nixpkgs-review was not re-run.

---

_{disclosure per the same policy: this comment was drafted with Claude Code (claude-opus-5).}

[sophronesis]

Rebased onto current master and force-pushed - CI is green now.

The earlier prepare failure was not a code problem. GitHub timed out computing mergeability after the previous force-push (Not retrying anymore. It's likely that GitHub is having internal issues), which left prepare.js resolving a stale merge_commit_sha. Rebasing gave it a fresh merge base; prepare, Lint / treefmt, Lint / parse and Lint / nixpkgs-vet all pass.

Still at 0.1.0-unstable-2026-04-07 (rev f2a94be), rebuilt on current master.

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_{disclosure per the Automation/AI policy: this comment was drafted with Claude Code (claude-opus-5).}