On the Frame, Steam refused to register titles whose id had a hyphen
(fc-smoke-exe) with "missing/invalid arguments", and registered the same
program as FCSmokeProbe (headset smoke test, 2026-09-27, BUILD_ID
20260922.6101926). Valve's client only allows ^[A-Za-z_][A-Za-z0-9_.]+$.
title_id now makes ids of letters, digits and _, not starting with a
digit, 2 to 64 long; new installs are checked against that, while titles
already on the Frame are still listed, launched and removed. Steam's error
text is trimmed before it's quoted, and the "install it again with Steam
running" hint only follows a Steam-not-running error.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Tested on a Frame (BUILD_ID 20260922.6101926):
- Devkit pairing: the service runs and answers properties.json, but /register
refuses with "please put the Steam client in pairing mode" unless Steam is on
Settings > Developer > Pair new host. Both setup paths now say so and keep
asking for 2 minutes before falling back to the password.
- Sideloading: registering, launching, quoted start paths and Remove work; a
Windows exe runs under Proton 11 through FEX. An aarch64 build starts but
outside the runtime container, and an x86-64 Linux build doesn't start
because the x86-64 Steam Linux Runtime 4.0 isn't installed. The inspect note
for x86-64 Linux builds now says so.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Dropping a game's .zip, folder or .exe on Send to Frame now adds it to the
headset's Steam library through Valve's SteamOS Devkit title path, with the
runtime picked from the program's header: Windows PE -> Proton Experimental
(steam_play=1), aarch64 ELF -> SteamLinuxRuntime_4-arm64, x86-64 ELF ->
SteamLinuxRuntime_4 (through FEX). Other architectures are refused.
- frame/devkit-utils: Valve's devkit-utils vendored unmodified (MIT,
steamos-devkit v0.20260925.1), synced to ~/devkit-utils by stamp, bundled in
the app and compiled in CI.
- ui/frame_titles.py: inspect (safe unzip, ELF/PE classification, launch
target ranking), install(path, name=None, exe=None, runtime=None,
progress=None), list, launch, remove, plus a CLI.
- ui/server.py: /api/titles (inspect/install/discard/launch/remove),
/api/titles/job progress, and an upload mode 'title'.
- ui/index.html: confirm dialog (name, launch target, runtime), install
progress, and a Sideloaded titles list with Launch and Remove. The app's
preload passes a dropped folder's path.
- tests and docs/sideloading.md. Device-side behaviour is inferred from
Valve's source; the headset was offline, so none of it has been checked on
a Frame yet.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
