CFP until September 20

Last Chance for Submissions for OpenFest 2025!

We were flooded with submissions today, and our servers almost overheated! 😅

Because of the incredible interest and requests from many of you, we’ve decided to give you a little more time. We are extending the deadline for the CFP until September 20, 2025!

If you’re one of those people who likes to submit at the last minute, this is your chance. We want to hear from everyone! Don’t miss the opportunity to be part of the program at the biggest open-source festival in Bulgaria. Your idea for a lecture, workshop, or booth is important to us, and we want to see it.

Send us your proposal HERE.

We’re awaiting you!

18th and 19th of October, 2025
"John Atanasoff" forum, Sofia Tech Park, Sofia, Bulgaria

Sponsors

Partners

BulStreamСофия Тех Паркipacct logo

Venue: "John Atanasoff" forum, Sofia Tech Park, Sofia, Bulgaria

By trolleybus

Trolley busses 5 and 8 to the Sofia Tech Park stop.

Trolley bus 4 to the Aviation Square bus stop.

By bus

Bus 73, 84, 184 or 306 to the Sofia Tech Park bus stop.

Bus 305 to the Aviation Square bus stop.

Map of all routes (click to enlarge):

OpenFest map