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This is a web feed, also known as an Atom feed. Subscribe by copying the URL from the address bar into your newsreader. Visit About Feeds to learn more and get started. It's free.Visit websiteRecent postsUpdated on $DATEdateYuan's blogYuan's blogA personal blogZola2026-09-08T00:00:00+00:00https://yuyuan.dev/atom.xmlWhy a Wayland Kiosk Can't Live in a Container2026-09-08T00:00:00+00:002026-09-08T00:00:00+00:00Unknownhttps://yuyuan.dev/posts/wayland-kiosk-container-vt/Three fixes, three dead ends, and a root cause underneath all of them: no container runtime can give a process its own virtual terminal.About2026-09-03T00:00:00+00:002026-09-03T00:00:00+00:00Unknownhttps://yuyuan.dev/about/Yuyuan Yuan (袁佑緣) — CV2026-09-03T00:00:00+00:002026-09-03T00:00:00+00:00Unknownhttps://yuyuan.dev/cv/Six Days Inside a GPU That Would Not Wake Up2026-09-03T00:00:00+00:002026-09-03T00:00:00+00:00Unknownhttps://yuyuan.dev/posts/blackwell-gsp-firmware-regression/An RTX 5070 Laptop that no NVIDIA driver could initialise, and what it took to prove the bug was in firmware rather than in code anyone can read.The Watchdog That Watched a Disk Die Anyway2026-08-21T00:00:00+00:002026-08-21T00:00:00+00:00Unknownhttps://yuyuan.dev/posts/disk-guard-watchdog-blind-spot/A disk-space guard observed the exact failure condition it was built to catch, twice, and the disk hit zero nine minutes later. Two bugs, two fixes, three hours apart.One Flake, Seven Hosts, and the Backup That Died Without Telling Anyone2026-08-01T00:00:00+00:002026-08-01T00:00:00+00:00Unknownhttps://yuyuan.dev/posts/single-source-nixos-multihost/Two hosts each carried their own copy of the same backup config, and the same structural mistake in both of them let one backup silently stop running for two days.A Nix-Managed GPU VM Is Genuinely Great, and Here's the Proof2026-07-30T00:00:00+00:002026-07-30T00:00:00+00:00Unknownhttps://yuyuan.dev/posts/nix-homelab-gpu-vm/Passing an RTX 3060 through to a Proxmox VM, lying to NVIDIA's driver about being virtualized, and making the whole thing reproducible from one command.Teaching a Nix-Packaged Photo App About a GPU It Didn't Know It Had2026-07-12T00:00:00+00:002026-07-12T00:00:00+00:00Unknownhttps://yuyuan.dev/posts/immich-gpu-ml-nixos/nixpkgs' Immich package has no CUDA wiring. Building it from source cost hours and an OOM kill. Fetching the vendor's own wheel cost minutes.Debugging a Bluetooth Kernel Regression on NixOS2026-05-25T00:00:00+00:002026-05-25T00:00:00+00:00Unknownhttps://yuyuan.dev/posts/mt7922-bluetooth-kernel-debug/How a two-line bounds check broke Bluetooth on the MT7922 chip, and the journey from dmesg to kernel source to patch.The NVMe Drive That Only Failed While Charging2025-10-21T00:00:00+00:002025-10-21T00:00:00+00:00Unknownhttps://yuyuan.dev/posts/nvme-firmware-regression-zens13/Three PCIe kernel parameters fixed nothing. The actual bug was in the firmware blob, and the fix was pinning a five-day-old package.Balancing Car2017-09-22T00:00:00+00:002017-09-22T00:00:00+00:00Unknownhttps://yuyuan.dev/posts/balancing-car/A self-balancing two-wheel robot on a LinkIt 7697 — state-space control, IMU sensor fusion, and a small reinforcement-learning model.