diff --git a/README.md b/README.md
index 3136e82..b04870f 100644
--- a/README.md
+++ b/README.md
@@ -43,9 +43,18 @@ The full design, module scope, build order, and prior-art verdicts are in
 
 ## Compatibility
 
-The harness (`Tools/run-compat-test.sh` in the Ward repo) boots a real headless RimWorld with the
-suite plus the popular psych/prison mods **and** the all-time most-subscribed mods loaded at once,
-and fails on any error naming our code. Combat Extended gets its own dedicated pass.
+The in-game harness (`Tools/run-compat-test.sh` in the Ward repo) boots a real headless RimWorld
+with the suite plus the popular psych/prison mods **and** the all-time most-subscribed mods loaded
+at once, and fails on any error naming our code. Combat Extended gets its own dedicated pass. It
+needs a licensed RimWorld + xvfb, so it is a LOCAL step, not CI.
+
+## CI
+
+Each code repo runs a Gitea Actions workflow (`.gitea/workflows/ci.yml`) on push: **lint def XML**
+(catches malformed XML and relative-xpath silent no-ops) + **dotnet build** against the Krafs
+RimWorld reference assemblies (no game install needed). Runs on the self-hosted `truenas-runner`
+(host mode, label `ubuntu-latest`); .NET is provisioned per-run via `setup-dotnet`. Green across
+Foul Play, Contraband, and Ward.
 
 ## AI disclosure