The install writes PopupNotifications.json into oxide/config or
carbon/configs as a banner across the top of the screen, by the installer's
rule: only where the file is missing or every setting is still the plugin's
own default (the Version aside). Anything else is kept whole. The plugin's
Version is written or kept, because PopupNotifications resets a config
without one. A failed write is said in the console and does not fail the
install: it is a look, not the bridge.
Tested in ghcr.io/ptero-eggs/installers:debian: missing, the rig's defaults,
defaults from a later release (version kept), four kinds of change, not
JSON, an existing banner, and an unmakeable directory. egg/build.sh builds.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY
