Which Operating Systems/Platforms are currently supported, and by how much (Not yet planned, Planning Stage, Alpha, Beta, Production)? Also which variants (32 bit, 64 bit).

We should have a table which indicate the level of support for each.

(1) Web Platform (On browsers, in HTML, code transpiled to javascript)
(2) On top of WASM
(3) Android (With Linux kernel)
(4) GNU Operating System (With Linux kernel) - Sailfish OS, Debian/Linux, Ubuntu, etc...
(5) HarmonyOS
(6) GNU Operating System (With Hurd kernel) - Debian/Hurd etc...
(7) Macintosh OS X
(8) Windows 10
(9) iOS
(10) Chromium OS (With Linux kernel)
(11) Fuchsia OS (With Zircon kernel)
(12) dahliaOS (GNU Operating System with Linux kernel and Zircon kernel)