3182da3965
Claude Code keeps per-project memory at <home>/.claude/projects/<key>/,
where <key> is the project's absolute path with every separator and the
drive colon turned into a dash. That makes it both rename-fragile and
machine-specific, and this project has hit each of those once:
- D:\DEV\Schunix -> D:\DEV\SchOS changed the key, and 43 memories were
invisible until moved across by hand.
- Development happens from Windows and from Linux, and each looks in a
different place for the same checkout.
Committing .claude/memory/ fixes both -- git carries it across renames
and between hosts -- and `import` puts it wherever the local machine
expects. .claude/settings.local.json stays ignored: those are per-machine
permissions.
The colon maps to a dash rather than being dropped. Deleting it gives
D-DEV-SchOS, which matches nothing and silently finds zero memories; that
was the first attempt. On Git Bash the key comes from `cygpath -w`,
because Claude Code is a Windows program and sees D:\DEV\SchOS, not
/d/DEV/SchOS.
2.3 KiB
| name | description | metadata | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| schunix-usb-ids | usb.ids ships as /usr/share/usb.ids, cached in dist/ and refreshed with `make usb-ids` — deliberately not on every build. |
|
Added 2026-08-09 at Nexoniarz's request. dist/usb.ids →
sysroot/usr/share/usb.ids, 730 KB, 25,673 lines, version 2026.06.26.
Licence: dual GPL-2.0-or-later OR 3-clause BSD. The file's own header says
nothing; the statement is on http://www.linux-usb.org/usb-ids.html: "under the
terms of either the GNU General Public License (version 2 or later) or of the
3-clause BSD License." Schunix takes the BSD option — the GPL one could not
be exercised, since Apache-2.0 and GPL-2.0-only cannot be combined. NOTICE
carries the attribution and says which option was taken.
Two places I deliberately did not do what was asked
"Update every compilation." It is cached in dist/ and refreshed only by
make usb-ids. Fetching per build would break offline builds, make the same
source produce different images on different days, and put a third-party web
server on the critical path of make — and dist/ exists precisely so a
rebuild never needs the network (stated in docs/layout.md). The file is
committed and carries its own version and date, so what shipped is always
knowable. The update target validates the download (grep -q "^# Version:")
before replacing the cached copy, so a truncated file or an error page cannot
silently destroy a good database.
It is not in the kernel. 730 KB against a ~770 KB kernel. Linux does not do
this either — the kernel reports vendor:product and lsusb resolves names from
/usr/share/hwdata/usb.ids in userspace. Same split here: /proc/devices and
the USB core report IDs; a future lsusb reads the database.
Also added to RAMDISK_EXCLUDE — 730 KB is 12% of the 6 MB ramdisk root and
nothing needs it to boot. Verified: mkfs: excluding usr/share/usb.ids, ramroot
metadata unchanged at 345 blocks. This is the second real use of that mechanism
(see schunix-ramdisk-root-sizing).
Still to do: nothing reads it yet. An lsusb in cmd/ that walks the USB
core's device list and looks names up is the natural next step, and would make
/proc/devices far more legible than 1234:1111.