I am really sorry, just pulled them from bookmarks.

Here https://www.ministryofnodes.com.au/ubuntu-node-box-guide-2020 which actually refers to Youtube playlist https://www.youtube.com/playlist?list=PLCRbH-IWlcW290O0N0lQV6efxuCA5Ja8c there are some topics about running nodes, including Dojo.

The privacy newsletter is here https://enegnei.github.io/This-Month-In-Bitcoin-Privacy/

Also I'd recommend Jameson Lopp as general source on OpSec https://www.whatbitcoindid.com/podcast/the-beginners-guide-to-bitcoin-part-12-bitcoin-privacy-opsec