Thanks man, actually this small repo plans to offer a more general tool to manipulate Favicon as `Favicon as a DOM`, but now can only use canvas to draw dynamic images and replace the <meta favicon /> tag, which is extremely tedious. Maybe this dom-to-img repo could be introduced to simplify the covert process: https://github.com/tsayen/dom-to-image
First, it's open source. so it's free technically.
And, as all the database miner node is distributed globally(not enought for now). By running a client you can visit the forum even from localhost, it's relatively hard to block the forum.
But using database hosted by miners need to pay PTC. You can get PTC by replying to the [topic](https://demo.covenantsql.io/forum/#/t/2) with your wallet address.