Design decisions
Short records of choices that shaped Fusion, with what was considered and why. Each one is kept as written; a later decision that changes one says so.
| # | Decision |
|---|---|
| 0001 | Composite guest frames by GPU-copying them into Godot-owned textures |
| 0002 | One Luau VM per addon, with a time limit instead of an instruction count |
| 0003 | The Unreal kit draws with SceneCaptures and copies them on the game's own GPU queue |
| 0004 | The Router API: data first, Lua 5.4 for router scripts |
| 0005 | The content hub is a signed static folder of our own |