diff --git a/bin/add-secret.sh b/bin/add-secret.sh
deleted file mode 100755
index 31d2991..0000000
--- a/bin/add-secret.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/bash
-
-set -euo pipefail
-
-cd $(git rev-parse --show-toplevel)
-
-host=$1
-secret=$2
-
-mkdir -p hosts/${host}/secrets
-
-nix run github:ryantm/agenix -- -e hosts/${host}/secrets/new
-
-mv hosts/${host}/secrets/new hosts/${host}/secrets/${secret}.age
-
diff --git a/bin/generate-backup-secrets.sh b/bin/generate-backup-secrets.sh
deleted file mode 100755
index f09af98..0000000
--- a/bin/generate-backup-secrets.sh
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/bash
-
-set -euo pipefail
-
-cd $(git rev-parse --show-toplevel)
-
-host=$1
-
-job_main=$(nix run nixpkgs#pwgen -- -1 64 1)
-target_cyan=$(nix run nixpkgs#pwgen -- -1 64 1)
-target_cyan_htpasswd=$(nix shell nixpkgs#apacheHttpd -c htpasswd -nbB ${host} ${target_cyan})
-target_magenta=$(nix run nixpkgs#pwgen -- -1 64 1)
-target_magenta_htpasswd=$(nix shell nixpkgs#apacheHttpd -c htpasswd -nbB ${host} ${target_magenta})
-
-mkdir -p hosts/${host}/secrets
-
-echo "$job_main" | nix run github:ryantm/agenix -- -e hosts/${host}/secrets/new
-mv hosts/${host}/secrets/new hosts/${host}/secrets/clerie-backup-job-main.age
-
-echo "$target_cyan" | nix run github:ryantm/agenix -- -e hosts/${host}/secrets/new
-mv hosts/${host}/secrets/new hosts/${host}/secrets/clerie-backup-target-cyan.age
-
-echo "$target_magenta" | nix run github:ryantm/agenix -- -e hosts/${host}/secrets/new
-mv hosts/${host}/secrets/new hosts/${host}/secrets/clerie-backup-target-magenta.age
-
-prev_htpasswd_cyan=$(nix run github:ryantm/agenix -- -d hosts/clerie-backup/secrets/restic-server-cyan-htpasswd.age)
-cat <(echo "$prev_htpasswd_cyan") <(echo "$target_cyan_htpasswd") | nix run github:ryantm/agenix -- -e hosts/clerie-backup/secrets/new
-mv hosts/clerie-backup/secrets/new hosts/clerie-backup/secrets/restic-server-cyan-htpasswd.age
-
-prev_htpasswd_magenta=$(nix run github:ryantm/agenix -- -d hosts/backup-4/secrets/restic-server-magenta-htpasswd.age)
-cat <(echo "$prev_htpasswd_magenta") <(echo "$target_magenta_htpasswd") | nix run github:ryantm/agenix -- -e hosts/backup-4/secrets/new
-mv hosts/backup-4/secrets/new hosts/backup-4/secrets/restic-server-magenta-htpasswd.age
diff --git a/flake.nix b/flake.nix
index 81ec93b..aa15219 100644
--- a/flake.nix
+++ b/flake.nix
@@ -26,7 +26,7 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
   };
-  outputs = { self, nixpkgs, nixos-hardware, chaosevents, fernglas, nixos-exporter, solid-xmpp-alarm, ... }@inputs: let
+  outputs = { self, agenix, nixpkgs, nixos-hardware, chaosevents, fernglas, nixos-exporter, solid-xmpp-alarm, ... }@inputs: let
     helper = (import ./lib/flake-helper.nix) inputs;
   in {
     clerie.hosts = {
@@ -86,6 +86,12 @@
       pkgs = import nixpkgs {
         overlays = [
           (import ./pkgs/overlay.nix)
+          (_: _: {
+            inherit (agenix.packages."x86_64-linux")
+              agenix;
+            inherit (chaosevents.packages."x86_64-linux")
+              chaosevents;
+           })
         ];
         system = "x86_64-linux";
       };
@@ -94,7 +100,10 @@
         anycast_healthchecker
         flask-excel
         iot-data
+        nixfiles-add-secret
+        nixfiles-generate-backup-secrets
         nixfiles-updated-inputs
+        nixfiles-update-ssh-host-keys
         pyexcel-xlsx
         pyexcel-webio
         uptimestatus
diff --git a/hosts/osmium/configuration.nix b/hosts/osmium/configuration.nix
index dc437dc..592b3e2 100644
--- a/hosts/osmium/configuration.nix
+++ b/hosts/osmium/configuration.nix
@@ -5,6 +5,8 @@
     [
       ./hardware-configuration.nix
       ../../configuration/proxmox-vm
+
+      ./nixfiles-updated-inputs.nix
     ];
 
   boot.loader.grub.enable = true;
diff --git a/hosts/osmium/nixfiles-updated-inputs.nix b/hosts/osmium/nixfiles-updated-inputs.nix
new file mode 100644
index 0000000..cff6766
--- /dev/null
+++ b/hosts/osmium/nixfiles-updated-inputs.nix
@@ -0,0 +1,21 @@
+{ config, pkgs, ... }:
+
+{
+  systemd.services.nixfiles-updated-inputs = {
+    environment = {
+      GIT_SSH_COMMAND = "ssh -o UserKnownHostsFile=${pkgs.writeText "known_hosts" "git.clerie.de ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIHQDwfRlw6L+pkLjXDgW2BUWlY1zNEDtVhNEsClgqaL"} -i %d/nixfiles-updated-inputs-ssh";
+      # nix likes a home directory to place the cache there
+      HOME = "/var/lib/nixfiles-updated-inputs";
+    };
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = pkgs.nixfiles-updated-inputs + "/bin/nixfiles-updated-inputs";
+      StateDirectory = "nixfiles-updated-inputs";
+      WorkingDirectory = "/var/lib/nixfiles-updated-inputs";
+      DynamicUser = true;
+      # this sets the correct file permissions for the ssh key because we use DynamicUser
+      LoadCredential = "nixfiles-updated-inputs-ssh:${config.age.secrets."nixfiles-updated-inputs-ssh".path}";
+    };
+    startAt = "*-*-* 03:03:00";
+  };
+}
diff --git a/hosts/osmium/secrets/nixfiles-updated-inputs-ssh.age b/hosts/osmium/secrets/nixfiles-updated-inputs-ssh.age
new file mode 100644
index 0000000..497a234
Binary files /dev/null and b/hosts/osmium/secrets/nixfiles-updated-inputs-ssh.age differ
diff --git a/pkgs/nixfiles/nixfiles-add-secret.nix b/pkgs/nixfiles/nixfiles-add-secret.nix
new file mode 100644
index 0000000..05cc0e5
--- /dev/null
+++ b/pkgs/nixfiles/nixfiles-add-secret.nix
@@ -0,0 +1,11 @@
+{ pkgs, ... }:
+
+pkgs.writeShellApplication {
+  name = "nixfiles-add-secret";
+  text = builtins.readFile ./nixfiles-add-secret.sh;
+  runtimeInputs = with pkgs; [
+    agenix
+    git
+  ];
+}
+
diff --git a/pkgs/nixfiles/nixfiles-add-secret.sh b/pkgs/nixfiles/nixfiles-add-secret.sh
new file mode 100755
index 0000000..e6345e0
--- /dev/null
+++ b/pkgs/nixfiles/nixfiles-add-secret.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+cd "$(git rev-parse --show-toplevel)"
+
+host="$1"
+secret="$2"
+
+mkdir -p "hosts/${host}/secrets"
+
+agenix -e "hosts/${host}/secrets/new"
+
+mv "hosts/${host}/secrets/new" "hosts/${host}/secrets/${secret}.age"
+
diff --git a/pkgs/nixfiles/nixfiles-generate-backup-secrets.nix b/pkgs/nixfiles/nixfiles-generate-backup-secrets.nix
new file mode 100644
index 0000000..9c2885e
--- /dev/null
+++ b/pkgs/nixfiles/nixfiles-generate-backup-secrets.nix
@@ -0,0 +1,13 @@
+{ pkgs, ... }:
+
+pkgs.writeShellApplication {
+  name = "nixfiles-generate-backup-secrets";
+  text = builtins.readFile ./nixfiles-generate-backup-secrets.sh;
+  runtimeInputs = with pkgs; [
+    agenix
+    apacheHttpd
+    git
+    pwgen
+  ];
+}
+
diff --git a/pkgs/nixfiles/nixfiles-generate-backup-secrets.sh b/pkgs/nixfiles/nixfiles-generate-backup-secrets.sh
new file mode 100755
index 0000000..28dcb42
--- /dev/null
+++ b/pkgs/nixfiles/nixfiles-generate-backup-secrets.sh
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+cd "$(git rev-parse --show-toplevel)"
+
+host="$1"
+
+job_main="$(pwgen -1 64 1)"
+target_cyan="$(pwgen -1 64 1)"
+target_cyan_htpasswd="$(htpasswd -nbB "${host}" "${target_cyan}")"
+target_magenta="$(pwgen -1 64 1)"
+target_magenta_htpasswd="$(htpasswd -nbB "${host}" "${target_magenta}")"
+
+mkdir -p "hosts/${host}/secrets"
+
+echo "$job_main" | agenix -e "hosts/${host}/secrets/new"
+mv "hosts/${host}/secrets/new" "hosts/${host}/secrets/clerie-backup-job-main.age"
+
+echo "$target_cyan" | agenix -e "hosts/${host}/secrets/new"
+mv "hosts/${host}/secrets/new" "hosts/${host}/secrets/clerie-backup-target-cyan.age"
+
+echo "$target_magenta" | agenix -e "hosts/${host}/secrets/new"
+mv "hosts/${host}/secrets/new" "hosts/${host}/secrets/clerie-backup-target-magenta.age"
+
+prev_htpasswd_cyan="$(agenix -d hosts/clerie-backup/secrets/restic-server-cyan-htpasswd.age)"
+cat <(echo "$prev_htpasswd_cyan") <(echo "$target_cyan_htpasswd") | agenix -e "hosts/clerie-backup/secrets/new"
+mv "hosts/clerie-backup/secrets/new" "hosts/clerie-backup/secrets/restic-server-cyan-htpasswd.age"
+
+prev_htpasswd_magenta="$(agenix -d "hosts/backup-4/secrets/restic-server-magenta-htpasswd.age")"
+cat <(echo "$prev_htpasswd_magenta") <(echo "$target_magenta_htpasswd") | agenix -e "hosts/backup-4/secrets/new"
+mv "hosts/backup-4/secrets/new" "hosts/backup-4/secrets/restic-server-magenta-htpasswd.age"
diff --git a/pkgs/nixfiles/nixfiles-update-ssh-host-keys.nix b/pkgs/nixfiles/nixfiles-update-ssh-host-keys.nix
new file mode 100644
index 0000000..960763b
--- /dev/null
+++ b/pkgs/nixfiles/nixfiles-update-ssh-host-keys.nix
@@ -0,0 +1,12 @@
+{ pkgs, ... }:
+
+pkgs.writeShellApplication {
+  name = "nixfiles-update-ssh-host-keys";
+  text = builtins.readFile ./nixfiles-update-ssh-host-keys.sh;
+  runtimeInputs = with pkgs; [
+    git
+    nix
+    openssh
+  ];
+}
+
diff --git a/bin/update-ssh-host-keys.sh b/pkgs/nixfiles/nixfiles-update-ssh-host-keys.sh
similarity index 50%
rename from bin/update-ssh-host-keys.sh
rename to pkgs/nixfiles/nixfiles-update-ssh-host-keys.sh
index 33ab4a3..e1298f4 100755
--- a/bin/update-ssh-host-keys.sh
+++ b/pkgs/nixfiles/nixfiles-update-ssh-host-keys.sh
@@ -1,8 +1,8 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
-cd $(git rev-parse --show-toplevel)
+cd "$(git rev-parse --show-toplevel)"
 
 for host in $(nix eval --apply 'attrs: builtins.concatStringsSep "\n" (builtins.filter (name: (builtins.substring 0 1 name) != "_") (builtins.attrNames attrs))' --raw .#clerie.hosts); do
-	echo $host
-	ssh-keyscan -t ed25519 ${host}.net.clerie.de 2>/dev/null | sed -E 's/(\S+) (.+)/\2/g' > hosts/${host}/ssh.pub
+	echo "$host"
+	ssh-keyscan -t ed25519 "${host}.net.clerie.de" 2>/dev/null | sed -E 's/(\S+) (.+)/\2/g' > "hosts/${host}/ssh.pub"
 done
diff --git a/pkgs/nixfiles/default.nix b/pkgs/nixfiles/nixfiles-updated-inputs.nix
similarity index 53%
rename from pkgs/nixfiles/default.nix
rename to pkgs/nixfiles/nixfiles-updated-inputs.nix
index 20353ce..bab538a 100644
--- a/pkgs/nixfiles/default.nix
+++ b/pkgs/nixfiles/nixfiles-updated-inputs.nix
@@ -1,10 +1,12 @@
 { pkgs, ... }:
 
 pkgs.writeShellApplication {
-  name = "nixfiles-updated-inputs.sh";
+  name = "nixfiles-updated-inputs";
   text = builtins.readFile ./nixfiles-updated-inputs.sh;
-  runtimeInputs = [
-    pkgs.git
+  runtimeInputs = with pkgs; [
+    git
+    nix
+    openssh
   ];
 }
 
diff --git a/pkgs/nixfiles/nixfiles-updated-inputs.sh b/pkgs/nixfiles/nixfiles-updated-inputs.sh
index b8a2806..282cef4 100755
--- a/pkgs/nixfiles/nixfiles-updated-inputs.sh
+++ b/pkgs/nixfiles/nixfiles-updated-inputs.sh
@@ -4,10 +4,15 @@ set -euo pipefail
 
 NOW="$(date --utc --iso-8601=minutes)"
 
-git fetch origin master
+git status || git clone gitea@git.clerie.de:clerie/nixfiles.git .
+echo "[!] Download changes"
+git fetch --all
 git checkout updated-inputs
-git merge -s ort -X theirs origin/master -m "Update from master ${NOW}"
+git -c "user.name=Flake Update Bot" -c "user.email=flake-update-bot@clerie.de" merge -s ort -X theirs origin/master -m "Update from master ${NOW}"
+echo "[!] Update inputs"
 nix flake update
+echo "[!] Commit changes"
 git add flake.lock
-git commit -m "Flake update ${NOW}" || true
+git -c "user.name=Flake Update Bot" -c "user.email=flake-update-bot@clerie.de" commit -m "Flake update ${NOW}" || true
+echo "[!] Publish"
 git push origin updated-inputs
diff --git a/pkgs/overlay.nix b/pkgs/overlay.nix
index b4514a6..6bcabf7 100644
--- a/pkgs/overlay.nix
+++ b/pkgs/overlay.nix
@@ -2,7 +2,10 @@ self: super: {
   anycast_healthchecker = self.python3.pkgs.callPackage ./anycast_healthchecker {};
   flask-excel = self.python3.pkgs.callPackage ./flask-excel {};
   iot-data = self.python3.pkgs.callPackage ./iot-data {};
-  nixfiles-updated-inputs = self.callPackage ./nixfiles {};
+  nixfiles-add-secret = self.callPackage ./nixfiles/nixfiles-add-secret.nix {};
+  nixfiles-generate-backup-secrets = self.callPackage ./nixfiles/nixfiles-generate-backup-secrets.nix {};
+  nixfiles-updated-inputs = self.callPackage ./nixfiles/nixfiles-updated-inputs.nix {};
+  nixfiles-update-ssh-host-keys = self.callPackage ./nixfiles/nixfiles-update-ssh-host-keys.nix {};
   pyexcel-xlsx = self.python3.pkgs.callPackage ./pyexcel-xlsx {};
   pyexcel-webio = self.python3.pkgs.callPackage ./pyexcel-webio {};
   uptimestatus = self.python3.pkgs.callPackage ./uptimestatus {};