I don't think it's even source-available? The repo has docs, a bunch of Lua scripts (for what software?), a small PHP module and a compiled "geo-ip firewall" binary. Most of the features mentioned on the Github page appear to only be in the paid version of the software, and this limited "free" version is delivered as a mystery-meat Docker image pulled from Huawei Cloud.
At best this is an advertisement that lies about being open source.
This is partly open sourced, not fully. All the rules are open sourced. Because the docker mirrors downloading from Huawei Cloud is faster, so we use it.
At best this is an advertisement that lies about being open source.