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Virtastic

@virtastic.bsky.social

We put desktop apps in your browser with WebAssembly. Virtastic.app

Virtastic @virtastic.bsky.social · 21/09/2026

Source and the build book: virtastic.app/go/freecad-r... Full video: youtu.be/LJs-75_wSMI Questions and bugs: virtastic.app/go/discord?u... #FreeCAD #WebAssembly #opensource

virtastic.app

Taking you to the freecad-web source · Virtastic

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Virtastic @virtastic.bsky.social · 21/09/2026

Limits: Chrome/Edge only (JSPI), ~115 MB once then cached, 16 GB ceiling, CalculiX single-threaded. Self-host: docker run -d -p 8080:80 ghcr.io/virtastic/freecad-web:1.0.0

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Virtastic @virtastic.bsky.social · 21/09/2026

42 MB assembly, 34 top-level parts, opened in the browser and orbited with a real mouse. Model: GA3Dtech's open-hardware basicbot, github.com/GA3Dtech/GA3D-basicbot-2023

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Virtastic @virtastic.bsky.social · 21/09/2026

One URL from Preferences lets Claude Code or Codex drive FreeCAD: tree, properties, selection, views, screenshots, every command. Off until you turn it on.

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Virtastic @virtastic.bsky.social · 21/09/2026

Share Session gives a link that opens your document in your setup for anyone. No install, no account. One person edits, the rest watch live in their own browser.

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Virtastic @virtastic.bsky.social · 21/09/2026

FreeCAD 1.1.3, compiled to WebAssembly. The whole application in your browser: every workbench, FEM solving, the Addon Manager. Your files stay on your machine. virtastic.app/go/freecad?u... Chrome/Edge 137+. Unofficial, LGPL.

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Virtastic @virtastic.bsky.social · 20/08/2026

Morrowind runs in a browser tab, free, on your own machine. New in 1.1.0: upload your copy once and it follows you to any computer you sign in from, saves and all. Plus multiplayer, which Morrowind never had. morrowind.virtastic.app github.com/Virtastic/op...

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Virtastic @virtastic.bsky.social · 10/08/2026

How it was built, and the one thing that nearly broke it (browsers throttle inactive tabs, and JA2 has turn timers and an AI that keeps thinking): virtastic.app/blog/jagged-...

virtastic.app

Jagged Alliance 2, running in your browser | Virtastic

Own Jagged Alliance 2? Point a browser at your copy and play it. The open-source Stracciatella engine recompiled to WebAssembly: full campaign, tactical combat, nothing to install.

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Virtastic @virtastic.bsky.social · 10/08/2026

Jagged Alliance 2 running in a Chrome browser: an isometric tactical map of a village with a mercenary squad moving between buildings, inventory bar along the bottom, address bar showing ja2.virtastic.app.

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Virtastic @virtastic.bsky.social · 26/07/2026

Honestly its cursed a bit... Data lands in MEMFS + Cache API after first run; stream mounts the 310MB BSA as HTTP Range lazy reads.Saves/config on IDBFS. And yes, pthreads + SharedArrayBuffer, COOP/COEP required; it hard fails without them. Check the repo out. Have a ton of updates coming to it.

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Virtastic @virtastic.bsky.social · 26/07/2026

OpenSceneGraph's shadow cascades crawl on GLES, and glBlitFramebuffer is null under Emscripten so the MSAA resolve was silently gated off. Fixed it, then found MSAA breaks under post-processing on WebGL2 anyway. Write-up: virtastic.app/blog/openmw-... Github: github.com/Virtastic/op...

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Virtastic @virtastic.bsky.social · 26/07/2026

Spent a while getting OpenMW, the open-source Morrowind engine, to compile to WebAssembly. The full game now runs in a browser tab at 60fps, entirely client-side. Genuinely wouldn't have been possible without @emscripten.org Thank you for the toolchain. morrowind.virtastic.app @kripken.com

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