Sriracha is an imageboard and forum server written in Go and available under GNU LGPL. A read-only demo is available. Sriracha recently received Docker and Docker Compose support. Official Docker images are now available on Docker Hub.
Features:
Upload files matching MIME type whitelist
Embed external media (YouTube, Vimeo and SoundCloud)
Reference links >>###
Report posts
CAPTCHA
Overboard
Plugin system
Thread catalog
Oekaki (drawings)
Fetch new replies automatically
Translate into additional languages
Play SWF files with bundled ruffle JavaScript Flash player
View Shift JIS text art with bundled submona web font