1  { lib, pkgs, ... }:
 2  
 3  {
 4    tree-root-file = "treefmt.nix";
 5    on-unmatched = "fatal";
 6  
 7    excludes = [
 8      "*.lock"
 9      "*.md"
10      ".envrc"
11      ".gitignore"
12      "LICENSE"
13    ];
14  
15    formatter.nixfmt = {
16      command = lib.getExe pkgs.nixfmt;
17      includes = [ "*.nix" ];
18      options = [ "--strict" ];
19    };
20  
21    formatter.rustfmt = {
22      command = lib.getExe pkgs.rustfmt;
23      includes = [ "*.rs" ];
24      options = [
25        "--config=skip_children=true"
26        "--edition=2024"
27      ];
28    };
29  
30    formatter.taplo = {
31      command = lib.getExe pkgs.taplo;
32      includes = [ "*.toml" ];
33      options = [
34        "format"
35        "--option=column_width=120"
36        "--option=align_comments=false"
37      ];
38    };
39  }