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Schcom is gone; the desktop path is Xorg now, Wayland groundwork next

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SchOS will not write its own compositor. projects/schcom, its test and its make targets are deleted. roadmap.md section 5 is
now the road to Wayland (udev/eudev, a /sys/devices tree and uevent netlink, libinput and libseat, a DRM device via the GPU
plan) and 5b is the boot manager rework (Niveus/skeuomorphic UEFI GUI). XLibre, Xorg or a Wayland compositor from Alpine,
whichever suits; Xorg for now.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EVRhxi9zpdW2uDUN4FVcao
This commit is contained in:
Nexoniarz 2026-10-26 09:35:54 +01:00
commit ed81f9a07a
21 changed files with 62 additions and 1356 deletions
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1
docs/architecture/README.md
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@ -16,7 +16,6 @@ its distribution.
| Kernel | **SchIFT** | Multi-core x86-64 kernel with a modular VFS |
| Filesystem | **SchFS** | Transactional, copy-on-write, the root filesystem |
| API | **SchAPI** | The native programming interface — *designed, not built* |
| Compositor | **Schcom** | SchOS's own compositor — v0 runs ([../plan/roadmap.md](../plan/roadmap.md) §5) |
| Packages | **apk** | Alpine's package manager manages the root; SchOS itself is the package `schos-base` |
Twelve virtual terminals sit under all of it -- `/dev/tty1`..`tty12`, Ctrl+Alt+F1..F12

5
docs/architecture/desktop.md
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@ -5,8 +5,9 @@ driver and the `evdev` input driver, Window Maker as the window manager, and `xt
`startx` runs `wmaker`. Nothing here is written by SchOS except the kernel interfaces it
stands on and four small files in `tools/posix/mkaroot.sh`.
**Xorg is the desktop for now, not for ever.** SchOS's own compositor, Schcom, is the road to a desktop of its own — the installer's
GUI first, SchDE on top later ([../plan/roadmap.md](../plan/roadmap.md) §5).
**Xorg is the desktop for now, not for ever.** SchOS will not write its own compositor (the one it had, Schcom, was deleted).
What comes next is whichever of XLibre (the Xorg fork), Xorg or a Wayland compositor from Alpine suits the machine; the groundwork
Wayland needs — udev, `/sys/devices`, libinput, a DRM device — is in [../plan/roadmap.md](../plan/roadmap.md) §5.
## Why X and not Wayland

2
docs/architecture/graphics.md
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@ -17,7 +17,7 @@ first thing here.
| **About** | Pixels and text | *Frames* |
| **Operations** | `draw_pixel`, `fill_rect`, `putc`, `text_at` | `acquire`, `present`, `wait_vblank` |
| **Buffering** | None. Direct writes to the scanout. | Double-buffered |
| **Users** | The console, PSOGM, GMMOS | Schcom (v0 and its successors); Xorg draws through `/dev/fb0` instead |
| **Users** | The console, PSOGM, GMMOS | None today — Xorg draws through `/dev/fb0` |
| **Must work when** | **Nothing else in the system does** | Userspace is healthy |
That last row is the reason they are not one interface. The console and the