Make the management scripts easier to use

.envrc

@@ -1,2 +1,4 @@
 use nix
 eval "$shellHook"
+
+PATH_add ./scripts/

scripts/test-build

@@ -1,6 +1,8 @@
 #!/usr/bin/env bash
 set -e
 
+cd /home/andreas/.nixos
+
 hosts=($(echo $(nix eval .#nixosConfigurations --apply 'pkgs: builtins.concatStringsSep " " (builtins.attrNames pkgs)') | xargs))
 skip=(
     "desktop-vm"

scripts/update-single-machine

@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 
+cd /home/andreas/.nixos
+
 rsa_key="~/.nixos/secrets/ssh_keys/ansible/ansible.key"
 export NIX_SSHOPTS="-t -i $rsa_key"