diff --git a/hive.nix b/hive.nix
index 3835df9..9917839 100644
--- a/hive.nix
+++ b/hive.nix
@@ -5,7 +5,7 @@ let
   sources = builtins.mapAttrs (patch.base { pkgs = import sources'.nixos-unstable { }; })
     .applyPatches' sources';
 
-  lib = import (sources.nix-lib + "/src/trivial.nix");
+  nix-lib = import ./lib/nix-lib;
 
   patch = import ./lib/nix-patches { patchFile = ./patches; };
 
@@ -14,15 +14,12 @@ let
 
   mkNode = node: {
     # Import the base configuration for each node
-    imports = builtins.map (lib.mkRel (./machines/${node})) [
-      "_configuration.nix"
-      "_hardware-configuration.nix"
-    ];
+    imports = [ ./machines/${node}/_configuration.nix ];
   };
 
   nixpkgs' = import ./meta/nixpkgs.nix;
   # All supported nixpkgs versions, instanciated
-  nixpkgs = lib.mapSingleFuse mkNixpkgs nixpkgs'.supported;
+  nixpkgs = nix-lib.mapSingleFuse mkNixpkgs nixpkgs'.supported;
 
   # Get the configured nixos version for the node,
   # defaulting to the one defined in meta/nixpkgs
@@ -43,10 +40,8 @@ let
   # Function to create arguments based on the node
   #
   mkArgs = node: rec {
-    lib = import sources.nix-lib {
-      inherit (nixpkgs.${version node}) lib;
-
-      keysRoot = ./keys;
+    lib = nixpkgs.${version node}.lib // {
+      extra = nix-lib;
     };
 
     meta = (import ./meta) lib;
@@ -57,13 +52,15 @@ in
 
 {
   meta = {
-    nodeNixpkgs = lib.mapSingleFuse (n: nixpkgs.${version n}) nodes;
+    nodeNixpkgs = nix-lib.mapSingleFuse (n: nixpkgs.${version n}) nodes;
 
     specialArgs = {
       inherit nixpkgs sources;
+
+      dgn-keys = import ./keys;
     };
 
-    nodeSpecialArgs = lib.mapSingleFuse mkArgs nodes;
+    nodeSpecialArgs = nix-lib.mapSingleFuse mkArgs nodes;
   };
 
   defaults =
@@ -113,4 +110,4 @@ in
       };
     };
 }
-// (lib.mapSingleFuse mkNode nodes)
+// (nix-lib.mapSingleFuse mkNode nodes)
diff --git a/keys/catvayor.keys b/keys/catvayor.keys
deleted file mode 100644
index 0e95ece..0000000
--- a/keys/catvayor.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAA16foz+XzwKwyIR4wFgNIAE3Y7AfXyEsUZFVVz8Rie catvayor@katvayor
\ No newline at end of file
diff --git a/keys/default.nix b/keys/default.nix
new file mode 100644
index 0000000..ae98aa0
--- /dev/null
+++ b/keys/default.nix
@@ -0,0 +1,74 @@
+let
+  _sources = import ../npins;
+
+  meta = import ../meta (import _sources.nixpkgs { }).lib;
+
+  getAttr = flip builtins.getAttr;
+
+  inherit (import ../lib/nix-lib { }) flip setDefault unique;
+in
+
+rec {
+  # WARNING: When updating this list, make sure that the nodes and members are alphabetically sorted
+  #          If not, you will face an angry maintainer
+  _keys = {
+    # SSH keys of the nodes
+    bridge01 = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIP5bS3iBXz8wycBnTvI5Qi79WLu0h4IVv/EOdKYbP5y7" ];
+    compute01 = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE/YluSVS+4h3oV8CIUj0OmquyJXju8aEQy0Jz210vTu" ];
+    geo01 = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEl6Pubbau+usQkemymoSKrTBbrX8JU5m5qpZbhNx8p4" ];
+    geo02 = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFNXaCS0/Nsu5npqQk1TP6wMHCVIOaj4pblp2tIg6Ket" ];
+    krz01 = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIP4o65gWOgNrxbSd3kiQIGZUM+YD6kuZOQtblvzUGsfB" ];
+    rescue01 = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEJa02Annu8o7ggPjTH/9ttotdNGyghlWfU9E8pnuLUf" ];
+    storage01 = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIA0s+rPcEcfWCqZ4B2oJiWT/60awOI8ijL1rtDM2glXZ" ];
+    vault01 = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAJA6VA7LENvTRlKdcrqt8DxDOPvX3bg3Gjy9mNkdFEW" ];
+    web01 = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPR+lewuJ/zhCyizJGJOH1UaAB699ItNKEaeuoK57LY5" ];
+    web02 = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAID+QDE+GgZs6zONHvzRW15BzGJNW69k2BFZgB/Zh/tLX" ];
+
+    # SSH keys of the DGNum members
+    catvayor = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAA16foz+XzwKwyIR4wFgNIAE3Y7AfXyEsUZFVVz8Rie catvayor@katvayor"
+    ];
+    ecoppens = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIGmU7yEOCGuGNt4PlQbzd0Cms1RePpo8yEA7Ij/+TdA" ];
+    gdd = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICE7TN5NQKGojNGIeTFiHjLHTDQGT8i05JFqX/zLW2zc"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIFbkPWWZzOBaRdx4+7xQUgxDwuncSl2fxAeVuYfVUPZ"
+    ];
+    jemagius = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOoxmou5OU74GgpIUkhVt6GiB+O9Jy4ge0TwK5MDFJ2F"
+      "ssh-rsa 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"
+    ];
+    luj = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDMBW7rTtfZL9wtrpCVgariKdpN60/VeAzXkh9w3MwbO julien@enigma"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGa+7n7kNzb86pTqaMn554KiPrkHRGeTJ0asY1NjSbpr julien@tower"
+    ];
+    mdebray = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEpwF+XD3HgX64kqD42pcEZRNYAWoO4YNiOm5KO4tH6o maurice@polaris"
+    ];
+    raito = [
+      "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDcEkYM1r8QVNM/G5CxJInEdoBCWjEHHDdHlzDYNSUIdHHsn04QY+XI67AdMCm8w30GZnLUIj5RiJEWXREUApby0GrfxGGcy8otforygfgtmuUKAUEHdU2MMwrQI7RtTZ8oQ0USRGuqvmegxz3l5caVU7qGvBllJ4NUHXrkZSja2/51vq80RF4MKkDGiz7xUTixI2UcBwQBCA/kQedKV9G28EH+1XfvePqmMivZjl+7VyHsgUVj9eRGA1XWFw59UPZG8a7VkxO/Eb3K9NF297HUAcFMcbY6cPFi9AaBgu3VC4eetDnoN/+xT1owiHi7BReQhGAy/6cdf7C/my5ehZwD"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE0xMwWedkKosax9+7D2OlnMxFL/eV4CvFZLsbLptpXr"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKiXXYkhRh+s7ixZ8rvG8ntIqd6FELQ9hh7HoaHQJRPU"
+    ];
+    thubrecht = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIL+EZXYziiaynJX99EW8KesnmRTZMof3BoIs3mdEl8L3"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHL4M4HKjs4cjRAYRk9pmmI8U0R4+T/jQh6Fxp/i1Eoy"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPM1jpXR7BWQa7Sed7ii3SbvIPRRlKb3G91qC0vOwfJn"
+    ];
+  };
+
+  getKeys = ls: builtins.concatLists (builtins.map (getAttr _keys) ls);
+
+  mkSecrets = nodes: setDefault { publicKeys = builtins.map getNodeKeys nodes; };
+
+  getNodeKeys =
+    node:
+    let
+      names = builtins.foldl' (names: group: names ++ meta.organization.groups.${group}) (
+        meta.nodes.${node}.admins ++ [ node ]
+      ) meta.nodes.${node}.adminGroups;
+    in
+    unique (rootKeys ++ (getKeys names));
+
+  # List of keys for the root group
+  rootKeys = getKeys meta.organization.groups.root;
+}
diff --git a/keys/ecoppens.keys b/keys/ecoppens.keys
deleted file mode 100644
index 4b5a875..0000000
--- a/keys/ecoppens.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIGmU7yEOCGuGNt4PlQbzd0Cms1RePpo8yEA7Ij/+TdA
diff --git a/keys/gdd.keys b/keys/gdd.keys
deleted file mode 100644
index b5d4e40..0000000
--- a/keys/gdd.keys
+++ /dev/null
@@ -1,2 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICE7TN5NQKGojNGIeTFiHjLHTDQGT8i05JFqX/zLW2zc
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIFbkPWWZzOBaRdx4+7xQUgxDwuncSl2fxAeVuYfVUPZ
diff --git a/keys/jemagius.keys b/keys/jemagius.keys
deleted file mode 100644
index be7b1ed..0000000
--- a/keys/jemagius.keys
+++ /dev/null
@@ -1,2 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOoxmou5OU74GgpIUkhVt6GiB+O9Jy4ge0TwK5MDFJ2F
-ssh-rsa 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
diff --git a/keys/luj.keys b/keys/luj.keys
deleted file mode 100644
index 70c87e3..0000000
--- a/keys/luj.keys
+++ /dev/null
@@ -1,2 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDMBW7rTtfZL9wtrpCVgariKdpN60/VeAzXkh9w3MwbO julien@enigma
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGa+7n7kNzb86pTqaMn554KiPrkHRGeTJ0asY1NjSbpr julien@tower
diff --git a/keys/machines/bridge01.keys b/keys/machines/bridge01.keys
deleted file mode 100644
index f9202b9..0000000
--- a/keys/machines/bridge01.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIP5bS3iBXz8wycBnTvI5Qi79WLu0h4IVv/EOdKYbP5y7
diff --git a/keys/machines/compute01.keys b/keys/machines/compute01.keys
deleted file mode 100644
index ba12030..0000000
--- a/keys/machines/compute01.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE/YluSVS+4h3oV8CIUj0OmquyJXju8aEQy0Jz210vTu
diff --git a/keys/machines/geo01.keys b/keys/machines/geo01.keys
deleted file mode 100644
index e205864..0000000
--- a/keys/machines/geo01.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEl6Pubbau+usQkemymoSKrTBbrX8JU5m5qpZbhNx8p4
diff --git a/keys/machines/geo02.keys b/keys/machines/geo02.keys
deleted file mode 100644
index 2dd9741..0000000
--- a/keys/machines/geo02.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFNXaCS0/Nsu5npqQk1TP6wMHCVIOaj4pblp2tIg6Ket
diff --git a/keys/machines/krz01.keys b/keys/machines/krz01.keys
deleted file mode 100644
index fc5ba52..0000000
--- a/keys/machines/krz01.keys
+++ /dev/null
@@ -1,2 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIP4o65gWOgNrxbSd3kiQIGZUM+YD6kuZOQtblvzUGsfB root@krz01
-
diff --git a/keys/machines/rescue01.keys b/keys/machines/rescue01.keys
deleted file mode 100644
index b7e8182..0000000
--- a/keys/machines/rescue01.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEJa02Annu8o7ggPjTH/9ttotdNGyghlWfU9E8pnuLUf
diff --git a/keys/machines/storage01.keys b/keys/machines/storage01.keys
deleted file mode 100644
index eff8f43..0000000
--- a/keys/machines/storage01.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIA0s+rPcEcfWCqZ4B2oJiWT/60awOI8ijL1rtDM2glXZ
diff --git a/keys/machines/vault01.keys b/keys/machines/vault01.keys
deleted file mode 100644
index 90173ca..0000000
--- a/keys/machines/vault01.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAJA6VA7LENvTRlKdcrqt8DxDOPvX3bg3Gjy9mNkdFEW
diff --git a/keys/machines/web01.keys b/keys/machines/web01.keys
deleted file mode 100644
index e81c999..0000000
--- a/keys/machines/web01.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPR+lewuJ/zhCyizJGJOH1UaAB699ItNKEaeuoK57LY5
diff --git a/keys/machines/web02.keys b/keys/machines/web02.keys
deleted file mode 100644
index 09427ed..0000000
--- a/keys/machines/web02.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAID+QDE+GgZs6zONHvzRW15BzGJNW69k2BFZgB/Zh/tLX
diff --git a/keys/mdebray.keys b/keys/mdebray.keys
deleted file mode 100644
index 3f26a23..0000000
--- a/keys/mdebray.keys
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEpwF+XD3HgX64kqD42pcEZRNYAWoO4YNiOm5KO4tH6o maurice@polaris
diff --git a/keys/raito.keys b/keys/raito.keys
deleted file mode 100644
index 7a717dd..0000000
--- a/keys/raito.keys
+++ /dev/null
@@ -1,3 +0,0 @@
-ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDcEkYM1r8QVNM/G5CxJInEdoBCWjEHHDdHlzDYNSUIdHHsn04QY+XI67AdMCm8w30GZnLUIj5RiJEWXREUApby0GrfxGGcy8otforygfgtmuUKAUEHdU2MMwrQI7RtTZ8oQ0USRGuqvmegxz3l5caVU7qGvBllJ4NUHXrkZSja2/51vq80RF4MKkDGiz7xUTixI2UcBwQBCA/kQedKV9G28EH+1XfvePqmMivZjl+7VyHsgUVj9eRGA1XWFw59UPZG8a7VkxO/Eb3K9NF297HUAcFMcbY6cPFi9AaBgu3VC4eetDnoN/+xT1owiHi7BReQhGAy/6cdf7C/my5ehZwD
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIE0xMwWedkKosax9+7D2OlnMxFL/eV4CvFZLsbLptpXr
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKiXXYkhRh+s7ixZ8rvG8ntIqd6FELQ9hh7HoaHQJRPU
diff --git a/keys/thubrecht.keys b/keys/thubrecht.keys
deleted file mode 100644
index ddeabce..0000000
--- a/keys/thubrecht.keys
+++ /dev/null
@@ -1,3 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIL+EZXYziiaynJX99EW8KesnmRTZMof3BoIs3mdEl8L3
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHL4M4HKjs4cjRAYRk9pmmI8U0R4+T/jQh6Fxp/i1Eoy
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPM1jpXR7BWQa7Sed7ii3SbvIPRRlKb3G91qC0vOwfJn
diff --git a/lib/default.nix b/lib/default.nix
deleted file mode 100644
index 02edb55..0000000
--- a/lib/default.nix
+++ /dev/null
@@ -1,33 +0,0 @@
-_:
-
-let
-  sources = import ../npins;
-
-  lib = import sources.nix-lib {
-    inherit ((import sources.nixpkgs { })) lib;
-
-    keysRoot = ../keys;
-  };
-
-  meta = import ../meta lib;
-
-  inherit (lib.extra) getAllKeys;
-in
-
-lib.extra
-// rec {
-  # Get publickeys associated to a node
-  getNodeKeys =
-    node:
-    let
-      names = builtins.foldl' (names: group: names ++ meta.organization.groups.${group}) (
-        meta.nodes.${node}.admins ++ [ "/machines/${node}" ]
-      ) meta.nodes.${node}.adminGroups;
-    in
-    rootKeys ++ (getAllKeys names);
-
-  rootKeys = getAllKeys meta.organization.groups.root;
-
-  machineKeys =
-    rootKeys ++ (getAllKeys (builtins.map (n: "machines/${n}") (builtins.attrNames meta.nodes)));
-}
diff --git a/lib/nix-lib/default.nix b/lib/nix-lib/default.nix
new file mode 100644
index 0000000..39e446d
--- /dev/null
+++ b/lib/nix-lib/default.nix
@@ -0,0 +1,197 @@
+# Copyright Tom Hubrecht, (2023)
+#
+#  Tom Hubrecht <tom@hubrecht.ovh>
+#
+#  This software is governed by the CeCILL  license under French law and
+#  abiding by the rules of distribution of free software.  You can  use,
+#  modify and/ or redistribute the software under the terms of the CeCILL
+#  license as circulated by CEA, CNRS and INRIA at the following URL
+#  "http://www.cecill.info".
+#
+#  As a counterpart to the access to the source code and  rights to copy,
+#  modify and redistribute granted by the license, users are provided only
+#  with a limited warranty  and the software's author,  the holder of the
+#  economic rights,  and the successive licensors  have only  limited
+#  liability.
+#
+#  In this respect, the user's attention is drawn to the risks associated
+#  with loading,  using,  modifying and/or developing or reproducing the
+#  software by the user in light of its specific status of free software,
+#  that may mean  that it is complicated to manipulate,  and  that  also
+#  therefore means  that it is reserved for developers  and  experienced
+#  professionals having in-depth computer knowledge. Users are therefore
+#  encouraged to load and test the software's suitability as regards their
+#  requirements in conditions enabling the security of their systems and/or
+#  data to be ensured and,  more generally, to use and operate it in the
+#  same conditions as regards security.
+#
+#  The fact that you are presently reading this means that you have had
+#  knowledge of the CeCILL license and that you accept its terms.
+
+let
+  # Reimplement optional functions
+  _optional =
+    default: b: value:
+    if b then value else default;
+in
+
+rec {
+  inherit (import ./nixpkgs.nix)
+    flip
+    hasPrefix
+    recursiveUpdate
+    splitString
+    unique
+    ;
+
+  /*
+    Fuses a list of attribute sets into a single attribute set.
+
+    Type: [attrs] -> attrs
+
+     Example:
+       x = [ { a = 1; } { b = 2; } ]
+       fuseAttrs x
+       => { a = 1; b = 2; }
+  */
+  fuseAttrs = builtins.foldl' (attrs: x: attrs // x) { };
+
+  fuseValueAttrs = attrs: fuseAttrs (builtins.attrValues attrs);
+
+  /*
+    Applies a function to `attrsList` before fusing the resulting list
+    of attribute sets.
+
+    Type: ('a -> attrs) -> ['a] -> attrs
+
+    Example:
+     x = [ "to" "ta" "ti" ]
+     f = s: { ${s} = s + s; }
+     mapFuse f x
+     => { to = "toto"; ta = "tata"; ti = "titi"; }
+  */
+  mapFuse =
+    # 'a -> attrs
+    f:
+    # ['a]
+    attrsList:
+    fuseAttrs (builtins.map f attrsList);
+
+  /*
+    Equivalent of lib.singleton but for an attribute set.
+
+    Type: str -> 'a -> attrs
+
+     Example:
+       singleAttr "a" 1
+       => { a = 1; }
+  */
+  singleAttr = name: value: { ${name} = value; };
+
+  # Enables a list of modules.
+  enableAttrs' =
+    enable:
+    mapFuse (m: {
+      ${m}.${enable} = true;
+    });
+
+  enableModules = enableAttrs' "enable";
+
+  /*
+    Create an attribute set from a list of values, mapping those
+    values through the function `f`.
+
+    Example:
+     mapSingleFuse (x: "val-${x}") [ "a" "b" ]
+     => { a = "val-a"; b = "val-b" }
+  */
+  mapSingleFuse = f: mapFuse (x: singleAttr x (f x));
+
+  /*
+    Creates a relative path as a string
+
+    Type: path -> str -> path
+
+     Example:
+       mkRel /home/test/ "file.txt"
+       => "/home/test/file.txt"
+  */
+  mkRel = path: file: path + "/${file}";
+
+  setDefault =
+    default:
+    mapFuse (name: {
+      ${name} = default;
+    });
+
+  mkBaseSecrets =
+    root:
+    mapFuse (secret: {
+      ${secret}.file = mkRel root secret;
+    });
+
+  getSecrets = dir: builtins.attrNames (import (mkRel dir "secrets.nix"));
+
+  subAttr = attrs: name: attrs.${name};
+
+  subAttrs = attrs: builtins.map (subAttr attrs);
+
+  optionalList = _optional [ ];
+
+  optionalAttrs = _optional { };
+
+  optionalString = _optional "";
+  /*
+    Same as fuseAttrs but using `lib.recursiveUpdate` to merge attribute
+    sets together.
+
+    Type: [attrs] -> attrs
+  */
+  recursiveFuse = builtins.foldl' recursiveUpdate { };
+
+  mkImport =
+    root: file:
+    let
+      path = mkRel root file;
+    in
+    path + (optionalString (!(builtins.pathExists path)) ".nix");
+
+  mkImports = root: builtins.map (mkImport root);
+
+  /*
+    Creates a confugiration by merging enabled modules,
+    services and extraConfig.
+
+    Example:
+     mkConfig {
+       enabledModules = [ "ht-defaults" ];
+       enabledServices = [ "toto" ];
+       extraConfig = { services.nginx.enable = true; };
+       root = ./.;
+     }
+     =>
+     {
+       imports = [ ./toto ];
+       ht-defaults.enable = true;
+       services.nginx.enable = true;
+     }
+  */
+  mkConfig =
+    {
+      # List of modules to enable with `enableModules`
+      enabledModules,
+      # List of services to import
+      enabledServices,
+      # Extra configuration, defaults to `{ }`
+      extraConfig ? { },
+      # Path relative to which the enabled services will be imported
+      root,
+    }:
+    recursiveFuse [
+      (enableModules enabledModules)
+
+      { imports = mkImports root ([ "_hardware-configuration" ] ++ enabledServices); }
+
+      extraConfig
+    ];
+}
diff --git a/lib/nix-lib/nixpkgs.nix b/lib/nix-lib/nixpkgs.nix
new file mode 100644
index 0000000..302a1b9
--- /dev/null
+++ b/lib/nix-lib/nixpkgs.nix
@@ -0,0 +1,416 @@
+###
+# Collection of nixpkgs library functions, those are necessary for defining our own lib
+#
+# They have been simplified and builtins are used in some places, instead of lib shims.
+
+rec {
+  /**
+    Does the same as the update operator '//' except that attributes are
+    merged until the given predicate is verified.  The predicate should
+    accept 3 arguments which are the path to reach the attribute, a part of
+    the first attribute set and a part of the second attribute set.  When
+    the predicate is satisfied, the value of the first attribute set is
+    replaced by the value of the second attribute set.
+
+    # Inputs
+
+    `pred`
+
+    : Predicate, taking the path to the current attribute as a list of strings for attribute names, and the two values at that path from the original arguments.
+
+    `lhs`
+
+    : Left attribute set of the merge.
+
+    `rhs`
+
+    : Right attribute set of the merge.
+
+    # Type
+
+    ```
+    recursiveUpdateUntil :: ( [ String ] -> AttrSet -> AttrSet -> Bool ) -> AttrSet -> AttrSet -> AttrSet
+    ```
+
+    # Examples
+    :::{.example}
+    ## `lib.attrsets.recursiveUpdateUntil` usage example
+
+    ```nix
+    recursiveUpdateUntil (path: l: r: path == ["foo"]) {
+      # first attribute set
+      foo.bar = 1;
+      foo.baz = 2;
+      bar = 3;
+    } {
+      #second attribute set
+      foo.bar = 1;
+      foo.quz = 2;
+      baz = 4;
+    }
+
+    => {
+      foo.bar = 1; # 'foo.*' from the second set
+      foo.quz = 2; #
+      bar = 3;     # 'bar' from the first set
+      baz = 4;     # 'baz' from the second set
+    }
+    ```
+
+    :::
+  */
+  recursiveUpdateUntil =
+    pred: lhs: rhs:
+    let
+      f =
+        attrPath:
+        builtins.zipAttrsWith (
+          n: values:
+          let
+            here = attrPath ++ [ n ];
+          in
+          if builtins.length values == 1 || pred here (builtins.elemAt values 1) (builtins.head values) then
+            builtins.head values
+          else
+            f here values
+        );
+    in
+    f [ ] [
+      rhs
+      lhs
+    ];
+
+  /**
+    A recursive variant of the update operator ‘//’.  The recursion
+    stops when one of the attribute values is not an attribute set,
+    in which case the right hand side value takes precedence over the
+    left hand side value.
+
+    # Inputs
+
+    `lhs`
+
+    : Left attribute set of the merge.
+
+    `rhs`
+
+    : Right attribute set of the merge.
+
+    # Type
+
+    ```
+    recursiveUpdate :: AttrSet -> AttrSet -> AttrSet
+    ```
+
+    # Examples
+    :::{.example}
+    ## `lib.attrsets.recursiveUpdate` usage example
+
+    ```nix
+    recursiveUpdate {
+      boot.loader.grub.enable = true;
+      boot.loader.grub.device = "/dev/hda";
+    } {
+      boot.loader.grub.device = "";
+    }
+
+    returns: {
+      boot.loader.grub.enable = true;
+      boot.loader.grub.device = "";
+    }
+    ```
+
+    :::
+  */
+  recursiveUpdate =
+    lhs: rhs:
+    recursiveUpdateUntil (
+      _: lhs: rhs:
+      !(builtins.isAttrs lhs && builtins.isAttrs rhs)
+    ) lhs rhs;
+
+  /**
+    Determine whether a string has given prefix.
+
+    # Inputs
+
+    `pref`
+    : Prefix to check for
+
+    `str`
+    : Input string
+
+    # Type
+
+    ```
+    hasPrefix :: string -> string -> bool
+    ```
+
+    # Examples
+    :::{.example}
+    ## `lib.strings.hasPrefix` usage example
+
+    ```nix
+    hasPrefix "foo" "foobar"
+    => true
+    hasPrefix "foo" "barfoo"
+    => false
+    ```
+
+    :::
+  */
+  hasPrefix = pref: str: (builtins.substring 0 (builtins.stringLength pref) str == pref);
+
+  /**
+    Escape occurrence of the elements of `list` in `string` by
+    prefixing it with a backslash.
+
+    # Inputs
+
+    `list`
+    : 1\. Function argument
+
+    `string`
+    : 2\. Function argument
+
+    # Type
+
+    ```
+    escape :: [string] -> string -> string
+    ```
+
+    # Examples
+    :::{.example}
+    ## `lib.strings.escape` usage example
+
+    ```nix
+    escape ["(" ")"] "(foo)"
+    => "\\(foo\\)"
+    ```
+
+    :::
+  */
+  escape = list: builtins.replaceStrings list (builtins.map (c: "\\${c}") list);
+
+  /**
+    Convert a string `s` to a list of characters (i.e. singleton strings).
+    This allows you to, e.g., map a function over each character.  However,
+    note that this will likely be horribly inefficient; Nix is not a
+    general purpose programming language. Complex string manipulations
+    should, if appropriate, be done in a derivation.
+    Also note that Nix treats strings as a list of bytes and thus doesn't
+    handle unicode.
+
+    # Inputs
+
+    `s`
+    : 1\. Function argument
+
+    # Type
+
+    ```
+    stringToCharacters :: string -> [string]
+    ```
+
+    # Examples
+    :::{.example}
+    ## `lib.strings.stringToCharacters` usage example
+
+    ```nix
+    stringToCharacters ""
+    => [ ]
+    stringToCharacters "abc"
+    => [ "a" "b" "c" ]
+    stringToCharacters "🦄"
+    => [ "�" "�" "�" "�" ]
+    ```
+
+    :::
+  */
+  stringToCharacters = s: builtins.genList (p: builtins.substring p 1 s) (builtins.stringLength s);
+
+  /**
+    Turn a string `s` into an exact regular expression
+
+    # Inputs
+
+    `s`
+    : 1\. Function argument
+
+    # Type
+
+    ```
+    escapeRegex :: string -> string
+    ```
+
+    # Examples
+    :::{.example}
+    ## `lib.strings.escapeRegex` usage example
+
+    ```nix
+    escapeRegex "[^a-z]*"
+    => "\\[\\^a-z]\\*"
+    ```
+
+    :::
+  */
+  escapeRegex = escape (stringToCharacters "\\[{()^$?*+|.");
+
+  /**
+    Appends string context from string like object `src` to `target`.
+
+    :::{.warning}
+    This is an implementation
+    detail of Nix and should be used carefully.
+    :::
+
+    Strings in Nix carry an invisible `context` which is a list of strings
+    representing store paths. If the string is later used in a derivation
+    attribute, the derivation will properly populate the inputDrvs and
+    inputSrcs.
+
+    # Inputs
+
+    `src`
+    : The string to take the context from. If the argument is not a string,
+      it will be implicitly converted to a string.
+
+    `target`
+    : The string to append the context to. If the argument is not a string,
+      it will be implicitly converted to a string.
+
+    # Type
+
+    ```
+    addContextFrom :: string -> string -> string
+    ```
+
+    # Examples
+    :::{.example}
+    ## `lib.strings.addContextFrom` usage example
+
+    ```nix
+    pkgs = import <nixpkgs> { };
+    addContextFrom pkgs.coreutils "bar"
+    => "bar"
+    ```
+
+    The context can be displayed using the `toString` function:
+
+    ```nix
+    nix-repl> builtins.getContext (lib.strings.addContextFrom pkgs.coreutils "bar")
+    {
+      "/nix/store/m1s1d2dk2dqqlw3j90jl3cjy2cykbdxz-coreutils-9.5.drv" = { ... };
+    }
+    ```
+
+    :::
+  */
+  addContextFrom = src: target: builtins.substring 0 0 src + target;
+
+  /**
+    Cut a string with a separator and produces a list of strings which
+    were separated by this separator.
+
+    # Inputs
+
+    `sep`
+    : 1\. Function argument
+
+    `s`
+    : 2\. Function argument
+
+    # Type
+
+    ```
+    splitString :: string -> string -> [string]
+    ```
+
+    # Examples
+    :::{.example}
+    ## `lib.strings.splitString` usage example
+
+    ```nix
+    splitString "." "foo.bar.baz"
+    => [ "foo" "bar" "baz" ]
+    splitString "/" "/usr/local/bin"
+    => [ "" "usr" "local" "bin" ]
+    ```
+
+    :::
+  */
+  splitString =
+    sep: s:
+    let
+      splits = builtins.filter builtins.isString (
+        builtins.split (escapeRegex (builtins.toString sep)) (builtins.toString s)
+      );
+    in
+    builtins.map (addContextFrom s) splits;
+
+  /**
+    Remove duplicate elements from the `list`. O(n^2) complexity.
+
+    # Inputs
+
+    `list`
+
+    : Input list
+
+    # Type
+
+    ```
+    unique :: [a] -> [a]
+    ```
+
+    # Examples
+    :::{.example}
+    ## `lib.lists.unique` usage example
+
+    ```nix
+    unique [ 3 2 3 4 ]
+    => [ 3 2 4 ]
+    ```
+
+    :::
+  */
+  unique = builtins.foldl' (acc: e: if builtins.elem e acc then acc else acc ++ [ e ]) [ ];
+
+  /**
+    Flip the order of the arguments of a binary function.
+
+    # Inputs
+
+    `f`
+
+    : 1\. Function argument
+
+    `a`
+
+    : 2\. Function argument
+
+    `b`
+
+    : 3\. Function argument
+
+    # Type
+
+    ```
+    flip :: (a -> b -> c) -> (b -> a -> c)
+    ```
+
+    # Examples
+    :::{.example}
+    ## `lib.trivial.flip` usage example
+
+    ```nix
+    flip concat [1] [2]
+    => [ 2 1 ]
+    ```
+
+    :::
+  */
+  flip =
+    f: a: b:
+    f b a;
+}
diff --git a/meta/options.nix b/meta/options.nix
index 7bae727..cf7476b 100644
--- a/meta/options.nix
+++ b/meta/options.nix
@@ -368,10 +368,10 @@ in
           name: "A member of the external service ${name} admins was not found in the members list."
         ) org.external)
 
-        # Check that all members have a keyFile
+        # Check that all members have ssh keys
         (builtins.map (name: {
-          assertion = builtins.pathExists "${builtins.toString ../keys}/${name}.keys";
-          message = "No ssh keys file found for ${name}.";
+          assertion = ((import ../keys)._keys.${name} or [ ]) != [ ];
+          message = "No ssh keys found for ${name}.";
         }) members)
       ];
     };
diff --git a/meta/verify.nix b/meta/verify.nix
index 92b9234..ecf2ed2 100644
--- a/meta/verify.nix
+++ b/meta/verify.nix
@@ -5,12 +5,6 @@ let
   pkgs = import sources.nixpkgs { };
 
   dns = import sources."dns.nix" { inherit pkgs; };
-
-  lib = import sources.nix-lib {
-    inherit (pkgs) lib;
-
-    keysRoot = ../keys;
-  };
 in
 
 {
@@ -29,6 +23,14 @@ in
       pkgs.writers.writeJSON "meta.json" config;
 
   dns = dns.util.writeZone "dgnum.eu" (
-    pkgs.lib.recursiveUpdate { SOA.serial = 0; } (import ./dns.nix { inherit dns lib; })
+    pkgs.lib.recursiveUpdate { SOA.serial = 0; } (
+      import ./dns.nix {
+        inherit dns;
+
+        lib = pkgs.lib // {
+          extra = import ../lib/nix-lib;
+        };
+      }
+    )
   );
 }
diff --git a/npins/sources.json b/npins/sources.json
index c3fc32e..fa089ef 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -45,9 +45,9 @@
         "url": "https://git.dgnum.eu/DGNum/dgsi.git"
       },
       "branch": "main",
-      "revision": "129641cc1fdd657c070c54f3b93aa0cd7c5a5b1d",
+      "revision": "f6fcd90622151e116adedb41f53da0445f1ee387",
       "url": null,
-      "hash": "0s4bkj7y6iqch8xislxyx7w5rn0xz95rvj9gfwcvm3p7sqj92ldj"
+      "hash": "1rrm4j142h2dkphya34hg341xhklrdvqim35jy6g0152a7y1nkk4"
     },
     "disko": {
       "type": "GitRelease",
@@ -194,20 +194,6 @@
       "url": "https://github.com/RaitoBezarius/microvm.nix/archive/49899c9a4fdf75320785e79709bf1608c34caeb8.tar.gz",
       "hash": "0sz6azdpiz4bd36x23bcdhx6mwyqj8zl5cczjgv48xqfmysy8zwy"
     },
-    "nix-lib": {
-      "type": "GitRelease",
-      "repository": {
-        "type": "Git",
-        "url": "https://git.hubrecht.ovh/hubrecht/nix-lib"
-      },
-      "pre_releases": false,
-      "version_upper_bound": null,
-      "release_prefix": null,
-      "version": "0.1.6",
-      "revision": "ffb3dfa4c146d48300bd4fa625acfe48e091a734",
-      "url": null,
-      "hash": "1frsja071qqx6p7rjnijzhidqfylx0ipzqpmjdvj4jl89h34vrhr"
-    },
     "nix-modules": {
       "type": "Git",
       "repository": {