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feat: add errata and hostname clarification

Kieran Klukas bc857732 9a11edc2

+6 -1
+6 -1
content/blog/2026-04-25_frc-systemcore-image.md
··· 165 165 166 166 ### Odds and Ends 167 167 168 - The image ships with a VS Code server on port 4900 and a `ttyd` web terminal on port 4901. On the discovery side, the SystemCore advertises itself via mDNS as both `_SystemCore._tcp` and the legacy NI services (`_ni._tcp`, `_ni-rt._tcp`). It also uses the roboRIO hostname pattern `roboRIO-{team}-FRC` alongside `SystemCore-{team}-FIRST`. This dual-personality approach means existing DS software that's looking for roboRIO services will still find it, which is an interesting backward compatibility move. 168 + The image ships with a VS Code server on port 4900 and a `ttyd` web terminal on port 4901. On the discovery side, the SystemCore advertises itself via mDNS as both `_SystemCore._tcp` and the legacy NI services (`_ni._tcp`, `_ni-rt._tcp`). It currently uses the roboRIO hostname pattern `roboRIO-{team}-FRC` alongside `SystemCore-{team}-FIRST`. This was done as a backwards compatibilty move during the beta period but will be removed in the full release in 2027. 169 169 170 170 One other oddity is the `xone-*` kernel modules - Xbox controller drivers for the wireless dongle, gamepad, chatpad, and headset. In normal FRC the flow is controllers -> DS -> robot, so having Xbox drivers on the robot side seems pointless. These are out-of-tree modules that someone deliberately added to the Buildroot config, but my guess is they're leftover from Limelight's general-purpose image config rather than something the SystemCore actually uses. Still, it raises the question of whether they're planning some kind of direct-attach mode for FTC maybe?. 171 171 172 172 Finally, the hostname is just `robot` and `/etc/os-release` identifies as `limelightos_systemcore_beta` with a git-hash version string. The whole userspace is owned by UID 105 / GID 113 (`systemcore`). 173 173 174 174 I will update this post if I find more interesting things over the next few months and I have some interesting ideas in the pipeline for testing with this :eyes: 175 + 176 + #### Errata 177 + 178 + - 2026-04-25 16:50 - Added clarification from Thad House on radio daemon not being written yet 179 + - 2026-04-25 16:55 - Added clarification that dual hostnames will be removed for production release