PRs ready for review _

randomizedcoder · January 5, 2026, 4:41pm

Package for Labrador, a cool ~$50 oscilloscope and signal generator

github.com/NixOS/nixpkgs

labrador: init at 0-unstable-2026-01-05

master ← randomizedcoder:Labrador

opened 04:20PM - 05 Jan 26 UTC

randomizedcoder

+164 -0

## Summary Add [EspoTek Labrador](https://github.com/espotek-org/Labrador) - …an open-source USB device that turns your PC into a full-featured electronics lab bench with oscilloscope, signal generator, logic analyzer, and multimeter functionality. This package builds the Qt5 desktop application for interfacing with the Labrador hardware. ### Features - **Cross-platform**: Supports Linux (x86_64, aarch64, i686, armv7l) and macOS (Darwin) - **Firmware updates**: Includes bundled libdfuprog library - **Complete installation**: Firmware files, waveforms, icons, and desktop file ### udev rules (Linux) For non-root USB access, users need to add udev rules. On NixOS: ```nix services.udev.extraRules = '' ENV{ID_VENDOR_ID}=="03eb", ENV{ID_MODEL_ID}=="ba94", MODE="0666" ENV{ID_VENDOR_ID}=="03eb", ENV{ID_MODEL_ID}=="a000", MODE="0666" ENV{ID_VENDOR_ID}=="03eb", ENV{ID_MODEL_ID}=="2fe4", MODE="0666" ''; ``` ### Build verification ``` $ nix-build -A labrador /nix/store/...-labrador-0-unstable-2026-01-05 $ ls result/bin/ labrador $ ldd result/bin/.labrador-wrapped | grep -E "(Qt|fftw|usb)" libfftw3_omp.so.3 => /nix/store/...-fftw-double-3.3.10/lib/libfftw3_omp.so.3 libusb-1.0.so.0 => /nix/store/...-libusb-1.0.29/lib/libusb-1.0.so.0 libfftw3.so.3 => /nix/store/...-fftw-double-3.3.10/lib/libfftw3.so.3 libQt5PrintSupport.so.5 => /nix/store/...-qtbase-5.15.18/lib/libQt5PrintSupport.so.5 libQt5Widgets.so.5 => /nix/store/...-qtbase-5.15.18/lib/libQt5Widgets.so.5 libQt5Gui.so.5 => /nix/store/...-qtbase-5.15.18/lib/libQt5Gui.so.5 libQt5Core.so.5 => /nix/store/...-qtbase-5.15.18/lib/libQt5Core.so.5 ``` Application launches successfully and scans for USB device (expected "DEVICE NOT FOUND" without hardware connected). --- ## Things done - Built on platform: - [x] 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]. - [x] 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. - [x] Fits [CONTRIBUTING.md], [pkgs/README.md], [maintainers/README.md] and other READMEs. [NixOS tests]: https://nixos.org/manual/nixos/unstable/index.html#sec-nixos-tests [Package tests]: https://github.com/NixOS/nixpkgs/blob/master/pkgs/README.md#package-tests [nixpkgs-review usage]: https://github.com/Mic92/nixpkgs-review#usage [CONTRIBUTING.md]: https://github.com/NixOS/nixpkgs/blob/master/CONTRIBUTING.md [lib/tests]: https://github.com/NixOS/nixpkgs/blob/master/lib/tests [maintainers/README.md]: https://github.com/NixOS/nixpkgs/blob/master/maintainers/README.md [nixos/tests]: https://github.com/NixOS/nixpkgs/blob/master/nixos/tests [pkgs/README.md]: https://github.com/NixOS/nixpkgs/blob/master/pkgs/README.md [pkgs/test]: https://github.com/NixOS/nixpkgs/blob/master/pkgs/test