Migrate packages

pkgs/deploy-to-pianopi/default.nix

@@ -0,0 +1,26 @@
+{
+  rsync,
+  writeShellApplication,
+}:
+
+writeShellApplication {
+  name = "deploy-to-pianopi";
+
+  runtimeInputs = [ rsync ];
+
+  text = ''
+    set -e
+    set -x
+
+    nix build .#packages.aarch64-linux.default --print-out-paths
+    # copy dependencies etc
+    nix copy --to ssh://julian@pianopi.local .#packages.aarch64-linux.default
+
+    # This should be expanded on the client side
+    # shellcheck disable=SC2029
+    # ssh julian@pianopi.local ln -sf "$DERIVATION_PATH"/bin/\* /home/julian/.local/bin
+    # ssh julian@pianopi.local nix profile install "$DERIVATION_PATH"
+
+    rsync -ac result/bin/ julian@pianopi.local:/home/julian/.local/bin
+  '';
+}