Blockada 5's VPN runs entirely on the phone. No problems with battery usage. Using their DNS with Blockada 6? No thank you. I'm saving the APK and I will side

Blockada 5's VPN runs entirely on the phone. No problems with battery usage. Using their DNS with Blockada 6? No thank you. I'm saving the APK and I will sideload it for as long as it will work. The problem is the maintenance of the blacklist. Anyway, a lot of people are interested in blocking ads, a solution will be found. Is already there an open source app equivalent to Blockada?