# maralorn/nix-output-monitor

Pipe your nix-build output through the nix-output-monitor a.k.a nom to get additional information while building.

Repository: https://github.com/maralorn/nix-output-monitor
Canonical: https://ross.abutalabs.com/products/nix-output-monitor
Language: Haskell
License Family: other
Topics: nix, haskell, hacktoberfest, nom
Last push: 2026-08-11T20:09:29+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 8, longevity 100
- inputs: {"age_days": 2160, "days_push": 22, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1646, forks 53 (observed 2026-08-28T04:05:16.285801+00:00)

## What it is
nix-output-monitor (nom) is a Haskell CLI tool that pipes nix-build output to display richer, colorful build information like progress timers and a build tree. It acts as a drop-in replacement for nix build, shell, develop, nix-build, and nix-shell commands.

## Use cases
- monitor nix build progress in the terminal
- see which derivations are building or downloading and how long they take
- get a visual build tree while running nix build
- replace nix-build with a more informative drop-in
- reduce clutter in nix build logs

## When to choose
- you use nix or nixos and want better feedback during builds
- you want build/download timers and a dependency tree without changing your workflow
- you want a drop-in nix/nix-build wrapper

## When to avoid
- you don't use the nix package manager
- you need stability guarantees for the library component (only the executable behavior follows SemVer)
- you use very old nix versions where the build tree may be incomplete

## Facets
- artifact type: cli-tool
- maturity: active
- function: cli, developer-tools, monitoring
- domain: developer-tools
- platform: cli
- tags: nix, haskell, build-monitor, terminal-ui, package-manager, command-line, devops, linux, macos

## Member repositories
- maralorn/nix-output-monitor (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:16.285801+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:45:23.423634+00:00, confidence not recorded.
  - readme: https://github.com/maralorn/nix-output-monitor (fetched 2026-08-28T04:05:16.285801+00:00, sha 6cd82dd4d3fe)
- Data as of 2026-08-30T08:39:29.467469+00:00.