I2P comes to Debian sid. Expected to land in stable-next. This should remove the need for adding 3rd party repos.

https://geti2p.net/en/blog/post/2018/02/11/high-level-roadmap

There are standard ways to deal with Debian starting daemons by default:

https://major.io/2016/05/05/preventing-ubuntu-16-04-starting-daemons-package-installed/

Syndie the distributed privacy forum software is seeing a re-write. Would be worthy to include if its packaged in Debian also
https://twitter.com/GetI2P/status/967164243127697408

T770 is a blocker for this ticket