Silver-grey poster partially divided into two vertical halves by a thin black line.
The left half is for Debian, with the Debian red spiral logo, the heading "Debian 13 Trixie", and the subtitle "The universal operating system".
The other half has and the OpenStreetMap India logo, the heading OpenStreetMap 21, and the subtitle "The map of the world".
The common text says -
Release party & birthday celebration
Join us to celebrate Debian's Trixie release and OpenStreetMap's 21st anniversary.
Calendar symbol - Saturday, 9th August, 4-6 PM
Location symbol - Essentia.dev, C-56/A-28, Sector 62, Noida, Uttar Pradesh - 201301
There's a QR code in the lower left corner, and a FOSS United logo in the lower right corner.