Remove bud from CI, too

.drone.yml

@@ -106,7 +106,6 @@ steps:
       - nix $$NIX_FLAGS flake check
       - nix $$NIX_FLAGS build ".#nixosConfigurations.PubSolarOS.config.system.build.toplevel"
       - nix $$NIX_FLAGS develop --command echo OK
-      - nix $$NIX_FLAGS develop --command bud --help
 
 ---
 kind: pipeline
@@ -122,8 +121,8 @@ steps:
     commands:
       - |
         nix --print-build-logs --verbose \
-          develop --command \
-            bud build bootstrap bootstrapIso
+          build \
+            '.#nixosConfigurations.bootstrap.config.system.build.bootstrapIso'
       - cp $(readlink -f result)/iso/*.iso /var/nix/iso-cache/
 
   - name: "Publish ISO"
@@ -158,6 +157,6 @@ volumes:
 
 ---
 kind: signature
-hmac: bdbefb07b97dc8efc44d8eb36ee4d1bb89eec3b7255b49929e126e86a4b4a788
+hmac: da951ba8ede88996728acfb47846e01880eb0e3b91f66e47848d6c1cc727c5d9
 
 ...