yannicksong0106/dsh-550c-boot

dsh-550c-boot is a cordis bundle plugin built specifically for the DeepSeek Harness (DSH) web UI, and it overlays a full-screen "550C boot intro" animation on top of DSH's own startup card so the default HARNESS / Loading plugins… message never becomes visible. Its core capability is a two-tier animation: a roughly 4-second Simple mode that handwrites the 550C logo path by path, and a roughly 16-second Full mode that walks through logo, base station terminal takeover, a 47-node overwrite sequence, and the final SYSTEM IS REWRITTEN stamp, with four phosphor color schemes (amber default, green, cyan, white) and the three native desktop window buttons recolored to match.

Installation is performed through dsh plugin --profile web add github:yannicksong0106/dsh-550c-boot, by adding the GitHub Release tarball URL ending in dsh-550c-boot.tgz, or by pointing at an absolute local directory path. After install the user must restart DSH once because the bundle is assembled at startup, and on every subsequent update or reinstall a hard reload via Ctrl+Shift+R is mandatory since the client bundle ships with max-age=31536000, immutable while the URL rev is only a process nonce that does not change with content.

The typical workflow targets DSH users who want to hide the stock loader and adopt a retro CRT aesthetic: open Settings → General → 550C Boot Animation, choose Simple, Full, or Off, hit the adjacent Preview button to watch it immediately, and skip the playback by clicking the canvas or pressing Esc. The selection is persisted in localStorage under the key dsh-550c-boot:mode, mirroring the convention used by other third-party settings rows, and the animation plays on every client load including plain page refreshes, with no per-session deduplication by design. It targets retro-computing enthusiasts, front-end tinkerers, and DSH users who want themed boot screens.

Dependencies, limits, and licensing: the plugin declares package.json#dsh.engines as >=0.2.0-rc.1, and the host-side overlay depends on the webserver/index-inject row rendering behavior that has only been verified on that build. Installation on lower hosts such as 0.1.7-rc.2 succeeds but in-app updates are rejected with HTTP 412, so anyone needing 0.1.7 support is asked to file an issue. Functionally it can only paint over the full screen after the Web UI has loaded, so an Electron-window pre-flash remains; the very first frame is a flat color used purely to occupy the screen before the plugin evaluates, not an animation frame. The native desktop window buttons are recolored but not removed, on macOS the title-bar drag region is owned by window dragging during playback so users must click elsewhere or press Esc to skip. The repository is released under the MIT license, copyright 2026 Ziyang Song.