A draft built on a ready-made image whose files all live outside /server (nodes keep only /server and /data) went round three times and ended as WIP, although research had also verified the game's Steam app, which SteamCMD installs straight into /server. The builder never tried it. - research reads each Steam app's OS list. When it ships a Linux server, cm2network/steamcmd goes first in the variant's images and that variant is recommended. Windows-only servers keep images with Proton or Wine first. The research prompt says the same. - build tries the variant's images in order: when no draft passes with one, the next image gets a fresh start. The first draft that boots wins; if none does, the PR gets the draft that got furthest, and its summary lists each image tried and how it went. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>