Replay 2026 badge

Name: Replay 2026 badge
Brand: Temporal

Temporal built 2,000 hackable electronic badges for its Replay conference (Moscone, San Francisco, May 2026): an ESP32-S3 board with an OLED screen, an 8x8 LED matrix and a joystick, with open-source firmware on GitHub and apps (Doom included) preloaded. The back of the PCB is etched with Ziggy, Temporal's tardigrade mascot, as an astronaut. The engineer behind it wrote a making-of titled 'I haven't slept since December'.

Generated render Report

Object details

Category: Pins & badges
Material: PCB, ESP32-S3, OLED, LED matrix
Year: 2026
Design: Custom PCB, open-source firmware, etched silkscreen art
Colour: Black, white, gold
Origin: Official merch

Sources & image credits

ReferenceBadges for Replay (and I haven't slept since December)Temporal

ReferenceTemporal Replay badge siteTemporal

Referencebadge.temporal.io source code on GitHubTemporal community on GitHub

ReferenceBehind the badge: how we built 2,000 hackable badges for Temporal ReplayTemporal on dev.to

Render referenceAtomgoods AI studio · product reference: @icalvn on X

What stands out

Open firmware plus a hidden mascot on the back makes a badge something to flip over, show off and keep hacking.

For your next brief

What would you hide on the back of your swag for the people curious enough to look?