Is this closed source software?
nowhere even close to nostr.land infrastructure
unlike standard relays, it is optimized for high performance and offers many features in 1 relay.
get started now: https://nostr.land
nostr:note19sykt666alfkqqla94udvg7rv0p0drqu6gkkxuumaht5en2r8kcseex759
Discussion
Yes.
It is mostly designed for large scale relay workloads and would not be much benefit to the small relay runner.
And due to the specific feature-set and general lack of people with relay development experience, there won’t be much contributions, only paid relays would steal it and give nothing back.