Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The first-hand writeup says the badge indicated information such as build status, last commit, and GitHub stars.
Badge context
Official r2con page for event scope, September 6-9 dates, Barcelona venues, schedule, and NighterMan's r2con badge talk.
Radare.org mirror of the official r2con 2017 page, useful for archive stability.
First-hand attendee report documenting the limited speaker/friends badge and its build, commit, and GitHub-star information surface.
Source trail
First-hand post-event source for the badge's limited speaker/friends distribution and project-status behavior.
Official source for the r2con event, September 6-9, 2017 Barcelona context, and the scheduled r2con badge talk by NighterMan.
Official mirror corroborating the event page and badge-talk context.