What does it do beyond what tex4ht does? If there is some way tex4ht could be improved, perhaps it would be best to contribute to that project? https://www.tug.org/applications/tex4ht/mn.html
(I sometimes think that the user interface of github puts too much emphasis on cloning and not enough on cooperation. Many useful tools ends up in a dozen forks, all with slightly different features, all equally inactive.)