If you have a cool tech product that you want to promote to developers, I've got some spots available on Hackertab.dev, a Browser extension that keeps developers updated about the latest dev trends, tools, events...
We do over 250k ad impressions every month (both paid and in-house ads), and each spot guarantees 50k to 100k impressions (limited spots number).
So, if your product is relevant to our audience, contact me! The ad won't be free, but I promise an affordable price exclusively for the indiehackers community .