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runxiyu

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2 Aug 2026
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6 Aug 2026

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3 Jul 2026 · Runxi Yu on Runxi Yu’s Website

X.509 certificates

For document signatures and such, run this (only when you fully understand the command): s="$(mktemp)" cat > "$s" << EOF -----BEGIN CERTIFICATE----- MIIBzjCCAXSgAwIBAgIUaHmeGPiA6P9Uma8qBTFZKDzeAMkwCgYIKoZIzj0EAwIw GzEZMBcGA1UEAwwQUnVueGkgWXUgUm9vdCBDQTAeFw0yNjA3MDMxNjE1MDRaFw0y ODEwMDUxNjE1MDRaMDIxETAPBgNVBAMMCFJ1bnhpIFl1MR0wGwYJKoZIhvcNAQkB Fg5tZUBydW54aXl1Lm9yZzBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABPWVIU7B w8nikZuu5TNoOwLNjK2XGFejxEqFYZPn0hihlT3a5rCKbLj79UPBMRFvrETioJK8 GsHOYhXokz/NsAmjfzB9MAwGA1…

29 Jun 2026 · Runxi Yu on Runxi Yu’s Website

Classes and schedules

GTBOOKS191 Tue 09:00 10:00 LEC Wed 09:00 10:00 DIS Thu 09:00 10:00 LEC Fri 09:00 10:00 DIS PHIL297 Tue 10:00 11:30 LEC Thu 10:00 11:30 LEC HONORS135 Wed 10:00 12:00 SEM EECS203 Tue 12:00 13:30 LEC Thu 12:00 13:30 LEC Fri 10:00 12:00 DIS EECS280 Mon 12:00 13:30 LEC Wed 12:00 13:30 LEC Fri 12:30 14:30 LAB

21 Jun 2026 · Runxi Yu on Runxi Yu’s Website

Getting Wayland to work on unprivileged Incus container

incus config device add "$CONTAINER" wayland proxy \ connect=unix:"$XDG_RUNTIME_DIR"/"$WAYLAND_DISPLAY" \ listen=unix:/run/user/1000/wayland-0 \ bind=container \ uid=1000 gid=1000 mode=0660 \ security.uid=1000 security.gid=1000 incus config device add "$CONTAINER" gpu gpu No need to mess with ID mapping or anything like that, apparently. Works much better than waypipe for GPU-accelerated applications.