feat: improve deploy script so it works with sudo, tell agents to use it.

AGENTS.md

@@ -68,7 +68,7 @@ Conventional commits: `type(scope): description`
 
 - Format check: `nix fmt`
 - Build a host: `nixos-rebuild build --flake .#{host}`
-- Deploy a host: `./deploy.sh {host}` or `nixos-rebuild --flake .#{host} switch --target-host {host} --use-remote-sudo`
+- Deploy a host: `./deploy.sh {host}`
 - Home-manager standalone: `home-manager switch --flake .#{user}@{host}`
 - CI/CD: Hydra at `hydra.m7.rs` builds all hosts on push; hosts auto-upgrade from the latest successful build (see `modules/nixos/hydra-auto-upgrade.nix`).
 

deploy.sh

@@ -1,8 +1,7 @@
 #!/usr/bin/env bash
+# Helper script to quickly deploy config to a host. Use it for rapid iteration.
 export NIX_SSHOPTS="-A"
 
-build_remote=false
-
 hosts="$1"
 shift
 
@@ -12,5 +11,5 @@ if [ -z "$hosts" ]; then
 fi
 
 for host in ${hosts//,/ }; do
-    nixos-rebuild --flake .\#$host switch --target-host $host --use-remote-sudo --use-substitutes $@
+   nixos-rebuild --flake .\#$host test --target-host $host --ask-sudo-password --use-substitutes $@
 done