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Tender

A Decky Loader plugin that syncs your self-hosted RomM ROM library into Steam as Non-Steam shortcuts. Games launch through RetroDECK.

  • Browse your entire RomM library directly from Steam's Gaming Mode
  • Download ROMs on-demand with cover art, hero banners, logos, and metadata
  • Manage BIOS files for systems that require them
  • Sync save files between devices through your RomM server

A RomM game's detail page in Steam showing the injected Tender panel

Pre-1.0 (v0.x)

The feature set isn't complete yet. Save sync covers standard cartridge saves; the memory-card systems — PlayStation, PS2, Dreamcast, GameCube, PSP, 3DS — don't sync their saves yet (support matrix). The Decky Store listing comes with v1.0; until then it's a manual install.

User Guide

  1. Getting Started — Prerequisites, installation, and first-time setup
  2. Configuration — Connection settings, SteamGridDB API key, Steam Input, debug options
  3. Syncing Your Library — How sync works, per-platform toggles, collections, artwork
  4. Managing Games — Game detail panel, downloading ROMs, uninstalling, refreshing metadata
  5. BIOS Management — What BIOS files are, checking status, downloading per-platform
  6. Save Sync — Auto-sync, conflict resolution modes, manual sync, failed sync retries
  7. Save File Extensions — Which save file extensions RetroDECK's cores produce, and the record of the original extension decision
  8. Save Sync Support Matrix — What syncs today, what's planned, and what doesn't fit the per-game model
  9. RetroDECK Path Migration — Moving your RetroDECK installation between storage locations
  10. Troubleshooting — Common issues, fixes, Danger Zone explained

Technical Reference

Developer-oriented documentation for contributors and those interested in the internals.