Use new cmd for nix builds

.drone.yml

@@ -27,8 +27,20 @@ steps:
   volumes:
     - name: deps
       path: /nix/store
+  environment:
+    DRONE_SSH_KEY:
+      from_secret: drone_ssh_key
+    GITEA_KNOWN_HOSTS:
+      from_secret: gitea_known_hosts
+    SSH_CONFIG:
+      from_secret: ssh_config
   commands:
-    - nix-build --argstr version ${DRONE_TAG} --argstr rev ${DRONE_COMMIT} .#image
+    - mkdir /root/.ssh
+    - echo "$DRONE_SSH_KEY" > /root/.ssh/id_ed25519
+    - chmod 400 /root/.ssh/id_ed25519
+    - echo "$SSH_CONFIG" > /root/.ssh/config
+    - echo "$GITEA_KNOWN_HOSTS" > /root/.ssh/known_hosts
+    - nix --extra-experimental-features nix-command --extra-experimental-features flakes build .#image
 
 - name: publish
   image: docker:dind
@@ -85,8 +97,20 @@ services:
   - name: dockersock
     path: /var/run
 
+---
+kind: secret
+name: drone_ssh_key
+data: 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
+---
+kind: secret
+name: gitea_known_hosts
+data: 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
+---
+kind: secret
+name: ssh_config
+data: 30Q8ofMygsDpqq4BcCtdv16/EWguc+mi2fYRszfZtmhe4PrIud4lxlOW5KJvyRVo7EZ2KzlZhHmGWGJKyA==
 ---
 kind: signature
-hmac: df9a2fb07428f545bc41b36d4c8b53e0e7223333f614e2d5d890a1adbd7f324b
+hmac: fb614ffe3466d8066f2ce7fe24e101c6de069eee58236bc3f05a5d67413d16e6
 
 ...