NixOS/nixfmt

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The official formatter for Nix code

Stars: 1.6k
Forks: 77
Open beginner issues: 0
Indexed issues: 18
Avg merge: 1d 16h
Merged PRs (30d): 12

Dominant language: Haskell
License: MPL-2.0
Last GitHub push: Sep 15, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue help wanted

Beginner friendly Everything

Open All

18 open issues indexed

Static package fails to build on darwin Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NixOS/nixfmt#411 · 2 comments · Opened May 31, 2026
formatting trace-printed values Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NixOS/nixfmt#378 · 4 comments · 3 reactions · Opened Mar 23, 2026
Define "small" heuristic to improve multi-line expansion Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

NixOS/nixfmt#360 · 7 comments · 3 reactions · Opened Dec 16, 2025
Preserve more trailing comments Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NixOS/nixfmt#323 · 7 comments · Opened Aug 5, 2025
weird indentation for line comments between expr and semicolon Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

NixOS/nixfmt#317 · 2 comments · Opened Jul 13, 2025
Re-evaluate policy of preserving empty lines Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

NixOS/nixfmt#308 · 1 comment · 6 reactions · Opened May 18, 2025
Consider removing empty lines from empty attrset Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

NixOS/nixfmt#299 · 4 comments · 1 reaction · Opened Apr 30, 2025
Add line length limit which includes indentation Open

enhancement good first issue help wanted

Difficulty 3/5 1-2 days Newbie friendliness 45/100

NixOS/nixfmt#288 · 1 comment · 5 reactions · Opened Mar 2, 2025
strings are absorbed when they are split onto multiple lines Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

NixOS/nixfmt#281 · Opened Feb 12, 2025
Inconsistent splitting with long lines Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NixOS/nixfmt#279 · 2 comments · Opened Jan 24, 2025
Weird formatting of optionals Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NixOS/nixfmt#278 · 2 comments · 2 reactions · Opened Jan 24, 2025
Long function applications should be wrapped per-arg Open

style

Difficulty 4/5 3-5 days Newbie friendliness 42/100

NixOS/nixfmt#267 · 2 comments · 3 reactions · Opened Nov 29, 2024
Consider not splitting last line of block comment (or make configurable via flag?) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

NixOS/nixfmt#225 · 3 comments · Opened Jul 22, 2024
Formatting only specific line ranges Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

NixOS/nixfmt#223 · 1 comment · 1 reaction · Opened Jul 17, 2024
CLI option to format non-singleton lists on one line Open

style

Difficulty 4/5 3-5 days Newbie friendliness 35/100

NixOS/nixfmt#206 · 6 comments · 17 reactions · Opened Jun 4, 2024
Improve Nixpkgs diff report Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

NixOS/nixfmt#187 · 2 comments · Opened Apr 5, 2024
Provide a GitHub Action Open

enhancement good first issue

Difficulty 3/5 1-2 days Newbie friendliness 35/100

NixOS/nixfmt#76 · 9 comments · 4 reactions · Opened Jan 20, 2021
Add a bench suite Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 15/100

NixOS/nixfmt#58 · 3 comments · Opened Feb 15, 2020

NixOS/nixfmt

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