the brapzilians attempted to form an union of imageboards, including /soybr/
2 or 3 shut down kek
https://uniaobrachan.wordpress.com/ (dead link and didn't archive award)
now they are attempting to create this http://lckt5hzrmtdvmkxiyeymy5xeqqqwrxwny5oemgrtcwbpwys4e4ry7sqd.onion/home