I'm a bit concerned about using it yet because it was written from scratch just about three months ago and probably hasn't gone through enough testing.
I used that one before. I don't like it technically. It only supports DNScurve and installs itself deeply into the system (e.g. system preferences). I also think it's more unreliable because they don't do the caching in a good way (sometimes a DNS server fails is my experience). I like dnscrypt proxy V2 more because it's more rock solid, works better on caching and also supports DNS over TLS. Only downside on dnscrypt proxy is that you don't have a nice UI and you have to type the local DNS 127.0.0.1 manually into your Wifi or LAN connection point.
E.g. on a Mac with Homebrew. First:
Second: Edit your /usr/local/etc/dnscrypt-proxy.toml and put e.g. google or cloudflare there insideThird: Put your DNS to 127.0.0.1