From 5260309f4f5038a3caf9190d281f43b8fab7cd7a Mon Sep 17 00:00:00 2001
From: Ben Potter <me@bpmct.net>
Date: Sat, 25 Apr 2026 20:22:22 +0000
Subject: [PATCH] incus-vm: use local: remote for NixOS images, drop
 nixos/unstable option

linuxcontainers.org (images: remote) does not carry NixOS. Images are
imported locally and aliased (e.g. nixos/25.11). Use local: as the
source remote when is_nixos, and images: for Ubuntu/other distros.

Also removes the nixos/unstable option which has no corresponding
locally-imported image.
---
 registry/bpmct/templates/incus-vm/main.tf | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/registry/bpmct/templates/incus-vm/main.tf b/registry/bpmct/templates/incus-vm/main.tf
index dfa895b2..02e0798c 100644
--- a/registry/bpmct/templates/incus-vm/main.tf
+++ b/registry/bpmct/templates/incus-vm/main.tf
@@ -75,11 +75,6 @@ data "coder_parameter" "image" {
     icon  = "/icon/nix.svg"
   }
 
-  option {
-    name  = "NixOS Unstable"
-    value = "nixos/unstable"
-    icon  = "/icon/nix.svg"
-  }
 }
 
 data "coder_parameter" "cpu" {
@@ -223,7 +218,9 @@ resource "coder_agent" "main" {
 resource "incus_image" "image" {
   remote = local.incus_remote
   source_image = {
-    remote = "images"
+    # NixOS images are imported locally (linuxcontainers.org doesn't carry NixOS).
+    # Ubuntu/other images are pulled from the public images: simplestreams remote.
+    remote = local.is_nixos ? "local" : "images"
     name   = local.is_nixos ? data.coder_parameter.image.value : "${data.coder_parameter.image.value}/${data.coder_parameter.host.value == "ThinkStation" ? "amd64" : "arm64"}"
     type         = "virtual-machine"
     architecture = data.coder_parameter.host.value == "ThinkStation" ? "x86_64" : "aarch64"