diff --git a/common/users/qenya.nix b/common/users/qenya.nix
index 6e96e58..d3998c3 100644
--- a/common/users/qenya.nix
+++ b/common/users/qenya.nix
@@ -1,4 +1,4 @@
-{ config, lib, pkgs, inputs, ... }:
+{ config, lib, pkgs, self, ... }:
 
 let keys = import ../../keys.nix;
 in {
@@ -12,5 +12,5 @@ in {
 
   programs.zsh.enable = true;
 
-  home-manager.users."qenya" = inputs.self.homeManagerModules."qenya";
+  home-manager.users."qenya" = self.homeManagerModules."qenya";
 }
diff --git a/flake.lock b/flake.lock
index 859793f..1161702 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,7 +2,9 @@
   "nodes": {
     "actual": {
       "inputs": {
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": [
+          "nixpkgs-unstable"
+        ]
       },
       "locked": {
         "lastModified": 1725392458,
@@ -133,6 +135,26 @@
         "type": "github"
       }
     },
+    "home-manager-unstable": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs-unstable"
+        ]
+      },
+      "locked": {
+        "lastModified": 1727346017,
+        "narHash": "sha256-z7OCFXXxIseJhEHiCkkUOkYxD9jtLU8Kf5Q9WC0SjJ8=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "c124568e1054a62c20fbe036155cc99237633327",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
     "home-manager_2": {
       "inputs": {
         "nixpkgs": [
@@ -156,43 +178,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1725103162,
-        "narHash": "sha256-Ym04C5+qovuQDYL/rKWSR+WESseQBbNAe5DsXNx5trY=",
+        "lastModified": 1727264057,
+        "narHash": "sha256-KQPI8CTTnB9CrJ7LrmLC4VWbKZfljEPBXOFGZFRpxao=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "12228ff1752d7b7624a54e9c1af4b222b3c1073b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgsSmall": {
-      "locked": {
-        "lastModified": 1727076372,
-        "narHash": "sha256-gXIWudYhY/4LjQPvrGn9lN4fbHjw/mf1mb9KKJK//4I=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "7ca0f93c530406c1610defff0b9bf643333cf992",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-24.05-small",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1726969270,
-        "narHash": "sha256-8fnFlXBgM/uSvBlLWjZ0Z0sOdRBesyNdH0+esxqizGc=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "23cbb250f3bf4f516a2d0bf03c51a30900848075",
+        "rev": "759537f06e6999e141588ff1c9be7f3a5c060106",
         "type": "github"
       },
       "original": {
@@ -202,13 +192,61 @@
         "type": "github"
       }
     },
+    "nixpkgs-small": {
+      "locked": {
+        "lastModified": 1727284797,
+        "narHash": "sha256-roj2jFZ/VNBQBBmUvvYRGiWbegZEgRk9Y1dhcY8kgLA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "37df9bcf93431c7f9f9358aec2d7ed0a52d7ba1d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-24.05-small",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1727122398,
+        "narHash": "sha256-o8VBeCWHBxGd4kVMceIayf5GApqTavJbTa44Xcg5Rrk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "30439d93eb8b19861ccbe3e581abf97bdc91b093",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-unstable-small": {
+      "locked": {
+        "lastModified": 1727320268,
+        "narHash": "sha256-B4AK91+9frHerQ6mFAtaR46ECMRtZufrtXFj/b5NqYU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "ea2838e1ce0a9da2abf88275843aca29d9f82b30",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable-small",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nur": {
       "locked": {
-        "lastModified": 1727141325,
-        "narHash": "sha256-oqM2LaC0RLXgKZmFpj+aFM8qf5Iw9ilMJPWGZbGdTAk=",
+        "lastModified": 1727348207,
+        "narHash": "sha256-PvgB7Wolpm8Q20Hquz1j/xXK7MuN6REVmt6jxpvRUwU=",
         "owner": "nix-community",
         "repo": "NUR",
-        "rev": "0d7209843407825066ccf9743c40d50b6d68674f",
+        "rev": "936785778bca86332d6b201dda67a38585cab885",
         "type": "github"
       },
       "original": {
@@ -220,18 +258,18 @@
     "plasma-manager": {
       "inputs": {
         "home-manager": [
-          "home-manager"
+          "home-manager-unstable"
         ],
         "nixpkgs": [
-          "nixpkgs"
+          "nixpkgs-unstable"
         ]
       },
       "locked": {
-        "lastModified": 1727020652,
-        "narHash": "sha256-zwTXt1bcf+wycX389ZyJFzUO2gzCb16ButXxiX2iA7Y=",
+        "lastModified": 1727210241,
+        "narHash": "sha256-lufS6uzSbSrggNCSgubymMQWnQMh7PvQ+lRZ8qH9Uoc=",
         "owner": "nix-community",
         "repo": "plasma-manager",
-        "rev": "6f1db348fcb89fd6b0b9c32e279d29ee6b4d1272",
+        "rev": "a02fef2ece8084aff0b41700bb57d24d73574cd1",
         "type": "github"
       },
       "original": {
@@ -243,11 +281,11 @@
     "randomcat": {
       "flake": false,
       "locked": {
-        "lastModified": 1727143958,
-        "narHash": "sha256-W2DK8AehT9Q5IaYWzUuUYyVRSvu3DdHwr8ioWJluUD8=",
+        "lastModified": 1727310986,
+        "narHash": "sha256-Vo+sWtfO053kPKY6F4X0LkU0yris25F5AVRMvCyI9Lw=",
         "owner": "randomnetcat",
         "repo": "nix-configs",
-        "rev": "2a6bd13e96db07e2e904fcc1b93faf5484725c91",
+        "rev": "7458a718acedf2590cbfc212e7070afdd3b8c4dc",
         "type": "github"
       },
       "original": {
@@ -263,8 +301,11 @@
         "birdsong": "birdsong",
         "colmena": "colmena",
         "home-manager": "home-manager_2",
-        "nixpkgs": "nixpkgs_2",
-        "nixpkgsSmall": "nixpkgsSmall",
+        "home-manager-unstable": "home-manager-unstable",
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-small": "nixpkgs-small",
+        "nixpkgs-unstable": "nixpkgs-unstable",
+        "nixpkgs-unstable-small": "nixpkgs-unstable-small",
         "nur": "nur",
         "plasma-manager": "plasma-manager",
         "randomcat": "randomcat"
diff --git a/flake.nix b/flake.nix
index fa2a9d7..a011d17 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,20 +1,27 @@
 {
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
-
-    nixpkgsSmall.url = "github:NixOS/nixpkgs/nixos-24.05-small";
+    nixpkgs-small.url = "github:NixOS/nixpkgs/nixos-24.05-small";
+    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
+    nixpkgs-unstable-small.url = "github:NixOS/nixpkgs/nixos-unstable-small";
 
     home-manager = {
       url = "github:nix-community/home-manager/release-24.05";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    plasma-manager = {
-      url = "github:nix-community/plasma-manager";
-      inputs.nixpkgs.follows = "nixpkgs";
-      inputs.home-manager.follows = "home-manager";
+    home-manager-unstable = {
+      url = "github:nix-community/home-manager";
+      inputs.nixpkgs.follows = "nixpkgs-unstable";
     };
 
+    plasma-manager = {
+      url = "github:nix-community/plasma-manager";
+      inputs.nixpkgs.follows = "nixpkgs-unstable";
+      inputs.home-manager.follows = "home-manager-unstable";
+    };
+
+    # TODO: remove dependency on NUR (#16)
     nur.url = "github:nix-community/NUR";
 
     agenix = {
@@ -33,11 +40,17 @@
       flake = false;
     };
 
-    actual.url = "git+https://git.xeno.science/xenofem/actual-nix?ref=main";
+    # Third-party flake providing package and NixOS module for Actual Budget as
+    # nixpkgs are having trouble: https://github.com/NixOS/nixpkgs/issues/269069
+    actual = {
+      url = "git+https://git.xeno.science/xenofem/actual-nix?ref=main";
+      inputs.nixpkgs.follows = "nixpkgs-unstable";
+    };
+
     birdsong.url = "git+https://git.qenya.tel/qenya/birdsong?ref=main";
   };
 
-  outputs = inputs@{ self, nixpkgs, nixpkgsSmall, home-manager, plasma-manager, nur, agenix, colmena, randomcat, actual, birdsong, ... }: {
+  outputs = inputs@{ self, nixpkgs, nixpkgs-small, home-manager, plasma-manager, nur, agenix, colmena, randomcat, actual, birdsong, ... }: {
     nixosConfigurations = (colmena.lib.makeHive self.outputs.colmena).nodes;
 
     # The name of this output type is not standardised. I have picked
@@ -61,11 +74,11 @@
         nodeNixpkgs = {
           kilgharrah = import nixpkgs { system = "x86_64-linux"; };
           tohru = import nixpkgs { system = "x86_64-linux"; };
-          yevaud = import nixpkgsSmall { system = "x86_64-linux"; };
-          orm = import nixpkgsSmall { system = "x86_64-linux"; };
-          kalessin = import nixpkgsSmall { system = "aarch64-linux"; };
+          yevaud = import nixpkgs-small { system = "x86_64-linux"; };
+          orm = import nixpkgs-small { system = "x86_64-linux"; };
+          kalessin = import nixpkgs-small { system = "aarch64-linux"; };
         };
-        specialArgs = { inherit inputs; };
+        specialArgs = { inherit self; };
       };
 
       defaults = { config, lib, pkgs, ... }: {