Easier setup

• Single application file: the Windows, macOS, and Linux versions are now each a single self-contained program — no separate runtime or extra files to install alongside it.
  • First-run setup wizard: if the platform starts without a configuration file, it now walks you through setup step-by-step in the terminal instead of requiring you to hand-edit config files.
• Auto-detect headsets on the local network when running from the M2L2 classroom kit, instead of entering IP addresses manually.

Headset & session experience

• Meta Quest headsets now stay locked in VR (XR) mode during sessions — the "Loft" virtual universe that could pull students out of the passthrough is disabled outside the VR game.
• Headset software updates are now compared by their actual installed version, so the platform won't skip or force unnecessary re-installs.
• Fixed several situations where a session could get stuck or crash:
  • the app freezing or crashing at first launch,
  • the interface not returning to the session view when GAMA closes an experiment,
  • a simulation trying to auto-restart after it had already started,
  • the app becoming unresponsive during startup.
• More reliable connection to GAMA simulations, including a fix for a bug where the packaged (installed) version of the app could silently fail to send commands to GAMA.
• Network scanning for devices is now faster — it stops searching as soon as it finds a match instead of always scanning the full range.

Interface

Management view	Streaming view

• Added keyboard navigation for selecting simulations.
• Each virtual unit (VU) now gets a consistent, stable color instead of a random one that changed on every page refresh.
• Replaced the low-resolution, pixelated SIMPLE logo with a proper high-quality version, also used as the browser tab icon.
• The web interface now automatically reconnects if its connection drops, instead of getting stuck.
• Fixed a crash when opening the live streaming view, and other small interface bugs (missing list items, broken pause/play behavior).

Language support

• Added Lao and Khmer translations.
• The interface now automatically matches your browser's language when possible (or fallback to english).
• Fixed incorrect Khmer and Vietnamese translations, and made sure every language has complete text (no missing labels).

Reliability

• Fixed multiple crash scenarios on Windows related to shutdown and network commands.
• Improved compatibility with GAMA running on Windows.
• General stability and bug-fixing pass across the interface and backend, plus expanded automated testing behind the scenes to catch regressions earlier.
• Validating platform's stability over +350 tests to ensure everything works properly on every OS covering webplatform, Android connection and management, GAMA integration, streaming, etc

 Test Files  48 passed | 4 skipped (52)
      Tests  354 passed | 12 skipped (366)
   Start at  16:42:18
   Duration  24.49s (transform 5.25s, setup 4.24s, import 13.39s, tests 24.83s, environment 19.84s)

Download the binary and run it

chmod +x ./simple-macos-v4
./simple-macos-v4

Management view	Streaming view

Changelog

New look & feel

• Refreshed UI with new fonts, colors, and visual assets throughout the platform
• Consistent button sizes and layouts across all screens
• Animated buttons in the simulation selection and management views
• Colored borders on headset streams to easily identify which headset is which
• New folder icon to distinguish sub-projects

Headset setup is now automatic

• The platform can now automatically install required apps (auto-adb, Oculus ADB) on connected headsets — no manual setup
  needed
• Use a custom android application to keep ADB Wireless active all the time
  • https://github.com/project-SIMPLE/adb-auto-enable
• Headset power settings are now configured automatically (4-hour auto-off)

UPS power management

• The platform now monitors your UPS (APC Back-UPS BX2200MI) and will automatically shut down all headsets after 3 hours or
  on power events

Better video streaming

• Significantly improved stream quality and performance
• Video now decodes in a background thread, reducing UI lag
• Stream rotation is now correct (no longer tilted at 25°)
• Streams restart automatically when a new browser tab connects
• Fixed streaming on Safari

Bug fixes

• Disconnected headsets are now properly grayed out in the interface
• All players are correctly disconnected when stopping an experiment
• Fixed the stop button not appearing in the simulation manager
• Fixed the platform crashing when no VU is found in the configuration (Gamaless mode now clearly indicated)

What's new ?

• Features — user-facing

  • Automatic network/device discovery and more robust ADB connections: the platform now auto-scans the subnet, uses a more reliable connection flow (tango/AdbManager/evilscan), and avoids attempting USB streaming when inappropriate. (@RoiArthurB)
  • Better codec handling for streams: automatic codec selection with safer fallbacks (h265/h264), server-driven codec negotiation and client compatibility checks to reduce broken streams. (@RoiArthurB)
  • Improved streaming layout and rendering: overhauled streaming rendering to maximally and responsively size each headset stream; new dynamic layout logic for portrait/landscape and grid fitting. (@GuillaumeLeroy34)
  • More resilient scrcpy/video behavior: device-specific cropping, restart logic for crashed streams, and protections against duplicate/ghost streams so displays remain stable. (@RoiArthurB, @GuillaumeLeroy34)
  • Usability: clearer error message when GAMA is unreachable to help users quickly resolve the common “GAMA not started” problem. (@RoiArthurB)

• Fixes — stability / bug fixes

  • Fixes to avoid duplicate canvases/streams and to prevent restarting streams that have already exited. (@RoiArthurB, @GuillaumeLeroy34)
  • Stream sizing and canvas dimension fixes (solo screen, grid sizing, responsive tests). (@GuillaumeLeroy34)
  • Improved removal/cleanup logic for disconnected ADB clients (moved to reliable hooks / list change handling). (@RoiArthurB)
  • Rotating error logs and Windows scrcpy path fixes. (@RoiArthurB)

• Logging, observability and developer quality-of-life

  • Full logging rework: switched to logtape, added meta sinks and separate frontend logger; improved trace logs and categories to facilitate debugging. (@RoiArthurB, @GuillaumeLeroy34)
  • Several housekeeping commits: bumped libraries, updated tsconfig, reorganized backend, and cleaned many console.log leftovers by using the new logging pipeline. (@GuillaumeLeroy34, @RoiArthurB)

• Chores / infra / security

  • Dependency bumps and maintenance: uWS/qs/express/vite/lodash bumps, various compatibility adjustments for newer Node versions. (@RoiArthurB, @GuillaumeLeroy34)
  • .env and configuration improvements: ENV_GAMALESS, ENV_SCRCPY_FORCE_H265, default app host set to wildcard to ease local demos. (@RoiArthurB)

Full Changelog: v2.0...2.5

This is the stable release from the webplatform (middleware + management panel) allowing to connect GAMA to Unity, and manage the first implementations of the SIMPLE project in school.

New Contributors

• @nautuan Built the new management UI and reworked part of the application

Full Changelog: v1.0...v2.0

This is the stable release from the middleware allowing to connect GAMA to Unity, mainly scoping a development objective.

New Contributors

• @leonsi7 Built all of this first prototype version

Full Changelog: https://github.com/project-SIMPLE/GamaServerMiddleware/commits/v1.0