It's called Scaife[1] and it's borderline unusable. Slows to an absolute crawl on my ~2020 machine within a few minutes, and the viewing experience is very uncomfortable. I'd be really surprised if people preferred it to Perseus.
What should actually be done, and what OP should do, is take the Perseus website and make it so it doesn't 503 all the time (it is incredibly unreliable).
Then, FOIA the State of California for the pay-to-play data which the UC Irvine-based TLG hoarders are withholding from the public (it is a publicly funded project...) so that the corpus can be meaningfully extended and built upon.
The 1990's tier html vibe of Perseus is to its great advantage.