diff --git a/flake.lock b/flake.lock
index b11b55a..6b4c21a 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,5 +1,60 @@
 {
   "nodes": {
+    "cargo-doc-live": {
+      "locked": {
+        "lastModified": 1692743000,
+        "narHash": "sha256-7lxG/r72hECceIir+Y+N3vM0f7FcudZD5cq+KhZj4MI=",
+        "owner": "srid",
+        "repo": "cargo-doc-live",
+        "rev": "575b9d0733cac0448219d7bc5746ebd594baedb5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "srid",
+        "repo": "cargo-doc-live",
+        "type": "github"
+      }
+    },
+    "crane": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixci",
+          "nixpkgs"
+        ],
+        "rust-overlay": "rust-overlay"
+      },
+      "locked": {
+        "lastModified": 1693787605,
+        "narHash": "sha256-rwq5U8dy+a9JFny/73L0SJu1GfWwATMPMTp7D+mjHy8=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "8b4f7a4dab2120cf41e7957a28a853f45016bd9d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "devour-flake": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1708783000,
+        "narHash": "sha256-UYva75UjgL2izR5tVzgTBBvtYyCPiKTtn1UjCZyR3Zw=",
+        "owner": "srid",
+        "repo": "devour-flake",
+        "rev": "bb0e0443291899a3f3fd85f87d2849f917692b1e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "srid",
+        "repo": "devour-flake",
+        "type": "github"
+      }
+    },
     "disko": {
       "inputs": {
         "nixpkgs": [
@@ -20,6 +75,22 @@
         "type": "github"
       }
     },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": "nixpkgs-lib"
@@ -38,10 +109,64 @@
         "type": "github"
       }
     },
+    "flake-parts_2": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib_2"
+      },
+      "locked": {
+        "lastModified": 1688466019,
+        "narHash": "sha256-VeM2akYrBYMsb4W/MmBo1zmaMfgbL4cH3Pu8PGyIwJ0=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "8e8d955c22df93dbe24f19ea04f47a74adbdc5ec",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
       },
+      "locked": {
+        "lastModified": 1692799911,
+        "narHash": "sha256-3eihraek4qL744EvQXsK1Ha6C3CR7nnT8X2qWap4RNk=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "f9e7cf818399d17d347f847525c5a5a8032e4e44",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_3": {
+      "inputs": {
+        "systems": "systems_4"
+      },
       "locked": {
         "lastModified": 1681202837,
         "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
@@ -97,6 +222,32 @@
         "type": "github"
       }
     },
+    "nixci": {
+      "inputs": {
+        "cargo-doc-live": "cargo-doc-live",
+        "crane": "crane",
+        "devour-flake": "devour-flake",
+        "flake-parts": "flake-parts_2",
+        "nixpkgs": "nixpkgs",
+        "process-compose-flake": "process-compose-flake",
+        "rust-overlay": "rust-overlay_2",
+        "systems": "systems_3",
+        "treefmt-nix": "treefmt-nix"
+      },
+      "locked": {
+        "lastModified": 1709311044,
+        "narHash": "sha256-rxdcNcvL+F3Xe478J2KzH6G0fjqrQnhduEm9zcrKi2M=",
+        "owner": "srid",
+        "repo": "nixci",
+        "rev": "d822a5f5dc66afa889a762c830a26761dc798071",
+        "type": "github"
+      },
+      "original": {
+        "owner": "srid",
+        "repo": "nixci",
+        "type": "github"
+      }
+    },
     "nixos-flake": {
       "locked": {
         "lastModified": 1708785992,
@@ -114,16 +265,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1708831307,
-        "narHash": "sha256-0iL/DuGjiUeck1zEaL+aIe2WvA3/cVhp/SlmTcOZXH4=",
+        "lastModified": 1688590700,
+        "narHash": "sha256-ZF055rIUP89cVwiLpG5xkJzx00gEuuGFF60Bs/LM3wc=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "5bf1cadb72ab4e77cb0b700dab76bcdaf88f706b",
+        "rev": "f292b4964cb71f9dfbbd30dc9f511d6165cd109b",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-23.11",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -146,7 +297,73 @@
         "type": "github"
       }
     },
+    "nixpkgs-lib_2": {
+      "locked": {
+        "dir": "lib",
+        "lastModified": 1688049487,
+        "narHash": "sha256-100g4iaKC9MalDjUW9iN6Jl/OocTDtXdeAj7pEGIRh4=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "4bc72cae107788bf3f24f30db2e2f685c9298dc9",
+        "type": "github"
+      },
+      "original": {
+        "dir": "lib",
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1681358109,
+        "narHash": "sha256-eKyxW4OohHQx9Urxi7TQlFBTDWII+F+x2hklDOQPB50=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "96ba1c52e54e74c3197f4d43026b3f3d92e83ff9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1680945546,
+        "narHash": "sha256-8FuaH5t/aVi/pR1XxnF0qi4WwMYC+YxlfdsA0V+TEuQ=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "d9f759f2ea8d265d974a6e1259bd510ac5844c5d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_4": {
+      "locked": {
+        "lastModified": 1708831307,
+        "narHash": "sha256-0iL/DuGjiUeck1zEaL+aIe2WvA3/cVhp/SlmTcOZXH4=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "5bf1cadb72ab4e77cb0b700dab76bcdaf88f706b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_5": {
       "locked": {
         "lastModified": 1682134069,
         "narHash": "sha256-TnI/ZXSmRxQDt2sjRYK/8j8iha4B4zP2cnQCZZ3vp7k=",
@@ -160,17 +377,79 @@
         "type": "indirect"
       }
     },
+    "process-compose-flake": {
+      "locked": {
+        "lastModified": 1693927910,
+        "narHash": "sha256-qPKHnWWzHS2bAi/SsFePQkGFeC2E1jklUjEidfQwYLc=",
+        "owner": "Platonic-Systems",
+        "repo": "process-compose-flake",
+        "rev": "5494afa0b6a7bc4ccf82ef1c36fe1fcdb4217255",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Platonic-Systems",
+        "repo": "process-compose-flake",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "disko": "disko",
         "flake-parts": "flake-parts",
         "home-manager": "home-manager",
         "nix-index-database": "nix-index-database",
+        "nixci": "nixci",
         "nixos-flake": "nixos-flake",
-        "nixpkgs": "nixpkgs",
+        "nixpkgs": "nixpkgs_4",
         "vscode-server": "vscode-server"
       }
     },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": [
+          "nixci",
+          "crane",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nixci",
+          "crane",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1693707092,
+        "narHash": "sha256-HR1EnynBSPqbt+04/yxxqsG1E3n6uXrOl7SPco/UnYo=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "98ccb73e6eefc481da6039ee57ad8818d1ca8d56",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "rust-overlay_2": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1694052649,
+        "narHash": "sha256-+eBEU3dw3/fCfi8ZHFNutINxehMazGkQxqNcpeNbTo4=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "a795148ffbcc77f2b592d50ceebe36147e623a77",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
     "systems": {
       "locked": {
         "lastModified": 1681028828,
@@ -186,10 +465,73 @@
         "type": "github"
       }
     },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_3": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_4": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "treefmt-nix": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1688026376,
+        "narHash": "sha256-qJmkr9BWDpqblk4E9/rCsAEl39y2n4Ycw6KRopvpUcY=",
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "rev": "df3f32b0cc253dfc7009b7317e8f0e7ccd70b1cf",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "type": "github"
+      }
+    },
     "vscode-server": {
       "inputs": {
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs_2"
+        "flake-utils": "flake-utils_3",
+        "nixpkgs": "nixpkgs_5"
       },
       "locked": {
         "lastModified": 1684517665,
diff --git a/flake.nix b/flake.nix
index df9ab4a..f945a2b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,6 +11,7 @@
     vscode-server.url = "github:nix-community/nixos-vscode-server";
     nix-index-database.url = "github:nix-community/nix-index-database";
     nix-index-database.inputs.nixpkgs.follows = "nixpkgs";
+    nixci.url = "github:srid/nixci";
   };
   outputs = inputs@{ self, ... }:
     inputs.flake-parts.lib.mkFlake { inherit inputs; } {
diff --git a/home/common.nix b/home/common.nix
index b2e114e..a4a3dcd 100644
--- a/home/common.nix
+++ b/home/common.nix
@@ -18,6 +18,7 @@
   home.packages = with pkgs; [
     # FIXME: neovim should be per-user
     neovim
+    nixci
   ];
 
   # Recommended Nix settings
diff --git a/nixos/common.nix b/nixos/common.nix
index 0ff8ddc..4a603e5 100644
--- a/nixos/common.nix
+++ b/nixos/common.nix
@@ -32,6 +32,13 @@
     settings.experimental-features = [ "nix-command" "flakes" ];
   };
 
+  # Extra packages
+  nixpkgs.overlays = [
+    (self: super: {
+      nixci = flake.inputs.nixci.packages.${pkgs.system}.default;
+    })
+  ];
+
   # Remote access
   # - SSH through tailscale
   # - Allow passwordless sudo for all in 'wheel'