init

.envrc

···
+if ! has nix_direnv_version || ! nix_direnv_version 3.1.0; then
+  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/3.1.0/direnvrc" "sha256-yMJ2OVMzrFaDPn7q8nCBZFRYpL/f0RcHzhmw/i6btJM="
+fi
+
+watch_file \
+  rust-toolchain.toml \
+  nix/modules/*.nix
+use flake

.gitattributes

···
+flake.lock linguist-generated=true

.github/workflows/ci-nix.yml

···
+name: "CI Nix"
+on:
+  # Run only when pushing to master branch, and making PRs
+  push:
+    branches:
+      - master
+  pull_request:
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-14]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: nixbuild/nix-quick-install-action@v33
+      - name: Install omnix
+        run: nix --accept-flake-config profile install "github:juspay/omnix"
+      - run: om ci

.github/workflows/ci.yml

···
+on: [push]
+
+name: CI
+
+jobs:
+  check:
+    name: Rust project
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install latest nightly
+        uses: actions-rs/toolchain@v1
+        with:
+            toolchain: nightly
+            override: true
+            components: rustfmt, clippy
+
+      # `cargo check` command here will use installed `nightly`
+      # as it is set as an "override" for current directory
+
+      - name: Run cargo check
+        uses: actions-rs/cargo@v1
+        with:
+          command: check

.gitignore

···
+/target
+/result
+/result-lib
+.direnv
+
+/.pre-commit-config.yaml

.vscode/extensions.json

···
+{
+    "recommendations": [
+        "rust-lang.rust-analyzer",
+        "jnoortheen.nix-ide",
+        "mkhl.direnv",
+        "tamasfe.even-better-toml",
+        "fill-labs.dependi"
+    ]
+}

.vscode/settings.json

···
+{
+    "editor.formatOnSave": true,
+    "rust-analyzer.files.excludeDirs": [
+        ".direnv"
+    ],
+    // https://twitter.com/sridca/status/1674947342607216641
+    // "editor.inlayHints.enabled": "offUnlessPressed",
+}

Cargo.lock

···
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "anstream"
+version = "0.6.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ae563653d1938f79b1ab1b5e668c87c76a9930414574a6583a7b7e11a8e6192"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "862ed96ca487e809f1c8e5a8447f6ee2cf102f846893800b20cebdf541fc6bbd"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e7644824f0aa2c7b9384579234ef10eb7efb6a0deb83f9630a49594dd9c15c2"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e231f6134f61b71076a3eab506c379d4f36122f2af15a9ff04415ea4c3339e2"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e0633414522a32ffaac8ac6cc8f748e090c5717661fddeea04219e2344f5f2a"
+dependencies = [
+ "anstyle",
+ "once_cell_polyfill",
+ "windows-sys",
+]
+
+[[package]]
+name = "clap"
+version = "4.5.48"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2134bb3ea021b78629caa971416385309e0131b351b25e01dc16fb54e1b5fae"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.5.48"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2ba64afa3c0a6df7fa517765e31314e983f51dda798ffba27b988194fb65dc9"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.5.47"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbfd7eae0b0f1a6e63d4b13c9c478de77c2eb546fba158ad50b4203dc24b9f9c"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b94f61472cee1439c0b966b47e3aca9ae07e45d070759512cd390ea2bebc6675"
+
+[[package]]
+name = "colorchoice"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b05b61dc5112cbb17e4b6cd61790d9845d13888356391624cbe7e41efeac1e75"
+
+[[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
+[[package]]
+name = "is_terminal_polyfill"
+version = "1.70.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+
+[[package]]
+name = "jacquard"
+version = "0.1.0"
+dependencies = [
+ "clap",
+]
+
+[[package]]
+name = "once_cell_polyfill"
+version = "1.70.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4895175b425cb1f87721b59f0f286c2092bd4af812243672510e1ac53e2e0ad"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.101"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89ae43fd86e4158d6db51ad8e2b80f313af9cc74f5c0e03ccb87de09998732de"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
+[[package]]
+name = "syn"
+version = "2.0.106"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ede7c438028d4436d71104916910f5bb611972c5cfd7f89b8300a8186e6fada6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f63a545481291138910575129486daeaf8ac54aee4387fe7906919f7830c7d9d"
+
+[[package]]
+name = "utf8parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+
+[[package]]
+name = "windows-link"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45e46c0661abb7180e7b9c281db115305d49ca1709ab8242adf09666d2173c65"
+
+[[package]]
+name = "windows-sys"
+version = "0.60.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.53.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d42b7b7f66d2a06854650af09cfdf8713e427a439c97ad65a6375318033ac4b"
+dependencies = [
+ "windows-link",
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86b8d5f90ddd19cb4a147a5fa63ca848db3df085e25fee3cc10b39b6eebae764"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7651a1f62a11b8cbd5e0d42526e55f2c99886c77e007179efff86c2b137e66c"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1dc67659d35f387f5f6c479dc4e28f1d4bb90ddd1a5d3da2e5d97b42d6272c3"
+
+[[package]]
+name = "windows_i686_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ce6ccbdedbf6d6354471319e781c0dfef054c81fbc7cf83f338a4296c0cae11"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "581fee95406bb13382d2f65cd4a908ca7b1e4c2f1917f143ba16efe98a589b5d"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e55b5ac9ea33f2fc1716d1742db15574fd6fc8dadc51caab1c16a3d3b4190ba"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a6e035dd0599267ce1ee132e51c27dd29437f63325753051e71dd9e42406c57"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.53.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"

Cargo.toml

···
+[workspace]
+resolver = "2"
+members = ["crates/*"]
+
+
+[workspace.package]
+authors = ["Orual <[e-mail]>"]
+edition = "2024"
+description = "A simple Rust project using Nix"
+version = "0.1.0"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[workspace.dependencies]
+clap = { version = "4.5", features = ["derive"] }

LICENSE

···
+MIT License
+
+Copyright (c) 2023 Orual
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

···
+A template Rust project with fully functional and no-frills Nix support, as well as builtin VSCode configuration to get IDE experience without any manual setup (just [install direnv](https://nixos.asia/en/direnv), open in VSCode and accept the suggestions). It uses [crane](https://crane.dev/), via [rust-flake](https://github.com/juspay/rust-flake).
+
+> [!NOTE]
+> If you are looking for the original template based on [this blog post](https://srid.ca/rust-nix)'s use of `crate2nix`, browse from [this tag](https://github.com/srid/jacquard/tree/crate2nix). The evolution of this template can be gleaned from [releases](https://github.com/srid/jacquard/releases).
+
+## Usage
+
+You can use [omnix](https://omnix.page/om/init.html)[^omnix] to initialize this template:
+```
+nix run nixpkgs#omnix -- init github:srid/jacquard -o ~/my-rust-project
+```
+
+[^omnix]: If initializing manually, make sure to:
+    - Change `name` in Cargo.toml.
+    - Run `cargo generate-lockfile` in the nix shelld
+
+## Adapting this template
+
+- There are two CI workflows, and one of them uses Nix which is slower (unless you configure a cache) than the other one based on rustup. Pick one or the other depending on your trade-offs.
+
+## Development (Flakes)
+
+This repo uses [Flakes](https://nixos.asia/en/flakes) from the get-go.
+
+```bash
+# Dev shell
+nix develop
+
+# or run via cargo
+nix develop -c cargo run
+
+# build
+nix build
+```
+
+We also provide a [`justfile`](https://just.systems/) for Makefile'esque commands to be run inside of the devShell.
+
+## Tips
+
+- Run `nix flake update` to update all flake inputs.
+- Run `nix --accept-flake-config run github:juspay/omnix ci` to build _all_ outputs.
+- [pre-commit] hooks will automatically be setup in Nix shell. You can also run `pre-commit run -a` manually to run the hooks (e.g.: to autoformat the project tree using `rustfmt`, `nixpkgs-fmt`, etc.).
+
+## Discussion
+
+- [Zulip](https://nixos.zulipchat.com/#narrow/stream/413950-nix)
+
+## See Also
+
+- [nixos.wiki: Packaging Rust projects with nix](https://nixos.wiki/wiki/Rust#Packaging_Rust_projects_with_nix)

crates/jacquard/Cargo.toml

···
+[package]
+authors.workspace = true
+# If you change the name here, you must also do it in flake.nix (and run `cargo generate-lockfile` afterwards)
+name = "jacquard"
+description = "A simple Rust project using Nix"
+version.workspace = true
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = { workspace = true }

crates/jacquard/src/main.rs

···
+use clap::Parser;
+
+#[derive(Parser, Debug)]
+#[command(author = "Orual", version, about)]
+/// Application configuration
+struct Args {
+    /// whether to be verbose
+    #[arg(short = 'v')]
+    verbose: bool,
+
+    /// an optional name to greet
+    #[arg()]
+    name: Option<String>,
+}
+
+fn main() {
+    let args = Args::parse();
+    if args.verbose {
+        println!("DEBUG {args:?}");
+    }
+    println!(
+        "Hello {} (from jacquard)!",
+        args.name.unwrap_or("world".to_string())
+    );
+}

flake.lock

···
+{
+  "nodes": {
+    "cargo-doc-live": {
+      "locked": {
+        "lastModified": 1724704668,
+        "narHash": "sha256-kJFYXlWUodg5WhJ0NuvrP0mCvOT/2AOIo8oGeYLXocs=",
+        "owner": "srid",
+        "repo": "cargo-doc-live",
+        "rev": "b09d5d258d2498829e03014931fc19aed499b86f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "srid",
+        "repo": "cargo-doc-live",
+        "type": "github"
+      }
+    },
+    "crane": {
+      "locked": {
+        "lastModified": 1736566337,
+        "narHash": "sha256-SC0eDcZPqISVt6R0UfGPyQLrI0+BppjjtQ3wcSlk0oI=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "9172acc1ee6c7e1cbafc3044ff850c568c75a5a3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1725234343,
+        "narHash": "sha256-+ebgonl3NbiKD2UD0x4BszCZQ6sTfL4xioaM49o5B3Y=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "567b938d64d4b4112ee253b9274472dc3a346eb6",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "git-hooks": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1734425854,
+        "narHash": "sha256-nzE5UbJ41aPEKf8R2ZFYtLkqPmF7EIUbNEdHMBLg0Ig=",
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "0ddd26d0925f618c3a5d85a4fa5eb1e23a09491d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1736693123,
+        "narHash": "sha256-9lIfXCaBPwUA7FnfDnoH4gxxdOvXG78k6UlUw0+ZDxc=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "2fdec2c2e68b7b7845d1ea4e0894c63143e3261b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "process-compose-flake": {
+      "locked": {
+        "lastModified": 1724606023,
+        "narHash": "sha256-rdGeNa/lCS8E1lXzPqgl+vZUUvnbEZT11Bqkx5jfYug=",
+        "owner": "Platonic-Systems",
+        "repo": "process-compose-flake",
+        "rev": "f6ce9481df9aec739e4e06b67492401a5bb4f0b1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Platonic-Systems",
+        "repo": "process-compose-flake",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "cargo-doc-live": "cargo-doc-live",
+        "flake-parts": "flake-parts",
+        "git-hooks": "git-hooks",
+        "nixpkgs": "nixpkgs",
+        "process-compose-flake": "process-compose-flake",
+        "rust-flake": "rust-flake",
+        "systems": "systems"
+      }
+    },
+    "rust-flake": {
+      "inputs": {
+        "crane": "crane",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-overlay": "rust-overlay"
+      },
+      "locked": {
+        "lastModified": 1736806612,
+        "narHash": "sha256-WioA+Vk7suDK+Ek77rDlbuxV6WqwFt30JsKHrmDCSiU=",
+        "owner": "juspay",
+        "repo": "rust-flake",
+        "rev": "b5f39885e2fcf137bfaf75decc077f9cca2bd984",
+        "type": "github"
+      },
+      "original": {
+        "owner": "juspay",
+        "repo": "rust-flake",
+        "type": "github"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "rust-flake",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1736700680,
+        "narHash": "sha256-9gmWIb8xsycWHEYpd2SiVIAZnUULX6Y+IMMZBcDUCQU=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "5d1865c0da63b4c949f383d982b6b43519946e8f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

···
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    flake-parts.inputs.nixpkgs-lib.follows = "nixpkgs";
+    systems.url = "github:nix-systems/default";
+    rust-flake.url = "github:juspay/rust-flake";
+    rust-flake.inputs.nixpkgs.follows = "nixpkgs";
+    process-compose-flake.url = "github:Platonic-Systems/process-compose-flake";
+    cargo-doc-live.url = "github:srid/cargo-doc-live";
+
+    git-hooks.url = "github:cachix/git-hooks.nix";
+    git-hooks.flake = false;
+  };
+
+  outputs = inputs:
+    inputs.flake-parts.lib.mkFlake {inherit inputs;} {
+      systems = import inputs.systems;
+
+      # See ./nix/modules/*.nix for the modules that are imported here.
+      imports = with builtins;
+        map
+        (fn: ./nix/modules/${fn})
+        (attrNames (readDir ./nix/modules));
+    };
+}

justfile

···
+default:
+    @just --list
+
+# Run pre-commit hooks on all files, including autoformatting
+pre-commit-all:
+    pre-commit run --all-files
+
+# Run 'cargo run' on the project
+run *ARGS:
+    cargo run {{ARGS}}
+
+# Run 'bacon' to run the project (auto-recompiles)
+watch *ARGS:
+	bacon --job run -- -- {{ ARGS }}

nix/modules/devshell.nix

···
+{inputs, ...}: {
+  perSystem = {
+    config,
+    self',
+    pkgs,
+    lib,
+    ...
+  }: {
+    devShells.default = pkgs.mkShell {
+      name = "jacquard-shell";
+      inputsFrom = [
+        self'.devShells.rust
+        config.pre-commit.devShell # See ./nix/modules/pre-commit.nix
+      ];
+      packages = with pkgs; [
+        just
+        nixd # Nix language server
+        bacon
+        rust-analyzer
+      ];
+    };
+  };
+}

nix/modules/pre-commit.nix

···
+{ inputs, ... }:
+{
+  imports = [
+    (inputs.git-hooks + /flake-module.nix)
+  ];
+  perSystem = { config, self', pkgs, lib, ... }: {
+    pre-commit.settings = {
+      hooks = {
+        nixpkgs-fmt.enable = true;
+        rustfmt.enable = true;
+      };
+    };
+  };
+}

nix/modules/rust.nix

···
+{inputs, ...}: {
+  imports = [
+    inputs.rust-flake.flakeModules.default
+    inputs.rust-flake.flakeModules.nixpkgs
+    # inputs.process-compose-flake.flakeModule
+    # inputs.cargo-doc-live.flakeModule
+  ];
+  perSystem = {
+    config,
+    self',
+    pkgs,
+    lib,
+    ...
+  }: let
+    inherit (pkgs.stdenv) isDarwin;
+    inherit (pkgs.darwin) apple_sdk;
+
+    # Common configuration for all crates
+    globalCrateConfig = {
+      crane.clippy.enable = false;
+    };
+
+    # Common build inputs for all crates
+    commonBuildInputs = lib.optionals isDarwin (
+      with apple_sdk.frameworks; [
+        IOKit
+        Security
+        SystemConfiguration
+      ]
+    );
+  in {
+    rust-project = {
+      # Source filtering to avoid unnecessary rebuilds
+      src = lib.cleanSourceWith {
+        src = inputs.self;
+        filter = config.rust-project.crane-lib.filterCargoSources;
+      };
+      crates = {
+        "jacquard" = {
+          imports = [globalCrateConfig];
+          autoWire = ["crate" "clippy"];
+          path = ./../../crates/jacquard;
+          crane = {
+            args = {
+              buildInputs = commonBuildInputs;
+            };
+          };
+        };
+      };
+    };
+    packages.default = self'.packages.jacquard;
+  };
+}

nix/modules/template.nix

···
+{ inputs, ... }:
+
+{
+  flake = rec {
+    templates.default = {
+      description = "A batteries-included Rust project template for Nix";
+      path = builtins.path { path = inputs.self; };
+    };
+
+    # https://omnix.page/om/init.html#spec
+    om.templates.jacquard = {
+      template = templates.default;
+      params = [
+        {
+          name = "package-name";
+          description = "Name of the Rust package";
+          placeholder = "jacquard";
+        }
+        {
+          name = "author";
+          description = "Author name";
+          placeholder = "Orual";
+        }
+        {
+          name = "author-email";
+          description = "Author email";
+          placeholder = "[e-mail]";
+        }
+        {
+          name = "vscode";
+          description = "Include the VSCode settings folder (./.vscode)";
+          paths = [ ".vscode" ];
+          value = true;
+        }
+        {
+          name = "github-ci";
+          description = "Include GitHub Actions workflow configuration";
+          paths = [ ".github" ];
+          value = true;
+        }
+        {
+          name = "nix-template";
+          description = "Keep the flake template in the project";
+          paths = [ "**/template.nix" ];
+          value = false;
+        }
+      ];
+      tests = {
+        default = {
+          params = {
+            package-name = "qux";
+            author = "John";
+            author-email = "[e-mail]";
+          };
+          asserts = {
+            source = {
+              "Cargo.toml" = true;
+              "flake.nix" = true;
+              ".github/workflows/ci.yml" = true;
+              ".vscode" = true;
+              "nix/modules/template.nix" = false;
+            };
+            packages.default = {
+              "bin/qux" = true;
+            };
+          };
+        };
+      };
+    };
+  };
+}

rust-toolchain.toml

···
+[toolchain]
+channel = "stable"