OASIS_OS v1.5.0 by AndrewAltimit

A desktop environment in Rust that runs on the PSP, on a PC and in a web page from the same code. On the PSP there's a window manager, a terminal with about 95 commands, a web browser that does HTTPS over TLS 1.3, a file manager, music and photo players, paint, a calculator, a text editor and 17 skins. TV Guide streams Internet Archive video, with the PSP's Media Engine decoding the H.264, and Internet Radio plays Archive collections.

The PSP release has three files:

- OASIS-OS.PBP: the shell. Put it in ms0:/PSP/GAME/OASISOS/ as EBOOT.PBP.
- oasis-overlay.prx: a kernel plugin that draws the shell's interface over a running game and plays MP3s in the background. It goes in ms0:/seplugins/ as oasis.prx.
- RECOVERY.PBP: a Wi-Fi file server for getting files back on if something breaks. It goes in ms0:/PSP/SAVEDATA/ARK_01234/, and you hold R at boot to start it.

Release v1.5.0

Desktop

| Binary | Description |
|--------|-------------|
| oasis-app-linux-* | Desktop entry point (SDL3 backend) |
| oasis-screenshot-linux-* | Screenshot capture utility |
| liboasis_ffi-linux-* | C-ABI shared library for UE5 and external integrations |

PSP

| Binary | Install Path | Description |
|--------|-------------|-------------|
| OASIS-OS.PBP | ms0:/PSP/GAME/OASISOS/EBOOT.PBP | Main application (sceGu rendering, TLS 1.3, ME video decode) |
| oasis-overlay.prx | ms0:/seplugins/oasis.prx | Kernel overlay plugin (in-game UI + background MP3) |
| RECOVERY.PBP | ms0:/PSP/SAVEDATA/ARK_01234/RECOVERY.PBP | Network recovery (WiFi TCP file server for unbricking) |

Quick Start

Desktop:

chmod +x oasis-app-linux-*
./oasis-app-linux-*

PSP: Copy files to Memory Stick, add game, ms0:/seplugins/oasis.prx, on to PLUGINS.TXT. Requires ARK-4 or PRO CFW on firmware 6.61.

Browser: Try it online -- no install required.

Requirements

• Desktop: SDL3 runtime libraries
• PSP: ARK-4 or PRO CFW, firmware 6.61
• Browser: Any modern browser with WebAssembly support

Commit Information

• Commit: 9258b8482737c037ca62c4af8b24c3b1cf83f636
• Branch: v1.5.0

What's Changed

• feat(ffi): UE5 multi-instance embedding — full-skin theming, resolution scaling, render scheduler by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/171
• Advanced theming engine, PSIX-style skins, and performance passes by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/172
• Streaming perf (radio/TV), theme-switch fix, nightly clippy cleanup by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/173
• fix: clippy failure on main (redundant u32 cast) + pre-PR Docker clippy note by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/174
• fix: replace rmp3 RawDecoder with safe wrapper over its C FFI (ASAN CI) by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/175
• Render perf: idle frame elision, vector layer baking, shader occlusion; windowed double-title-bar fix by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/176
• fix(ci): make perf-budget tests robust to loaded self-hosted runner by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/177
• feat(mcp): optional MCP control server for agent-driven UI by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/178
• Improvement waves + end-to-end test harness and suites (~120 bug fixes) by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/179
• ci: stop redundant LTO rebuild in screenshot step, parallelize tests, raise timeouts by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/180
• fix(tests): headless-safe SFX stream + de-flake browser JS timer tests by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/181
• fix(ci): put from-source libSDL3 on LD_LIBRARY_PATH for screenshot step by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/182
• fix(tests): make wall-clock bounds robust to a loaded nextest pool by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/183
• fix(ci): recover cargo-deny from stale advisory-db git locks by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/184
• fix(tests,ci): de-flake tail-probe e2e test; drop sudo from pre-checkout cleanup by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/185
• Fix CI failures, lint all targets, stabilize the browser by @AndrewAltimit in https://github.com/AndrewAltimit/oasis-os/pull/186

Full Changelog: https://github.com/AndrewAltimit/oasis-os/compare/v1.4.0...v1.5.0