The main repo is GPLv3: https://github.com/AdguardTeam/AdGuardHome https://github.com/AdguardTeam/AdGuardHome They already have many other commercials products

The main repo is GPLv3: https://github.com/AdguardTeam/AdGuardHome https://github.com/AdguardTeam/AdGuardHome They already have many other commercials products and I guess also the default filter rules are very good because of their experience in the domain. But I think you can use it completely without the AdGuard servers and use other filter list sources.