http://cs.i2p/nix
Kodachi hasn't been updated since early 2023, and it includes even older versions of important security/privacy related software: OpenSSH 8.2 is from 2020-2-14, OpenVPN 2.4.4 is from 2017-9-26 (but built on 2022-3-22, when 2.5.6 was the latest), OpenSSL 1.1.1 is from 2018-9-11, tor 0.4.4.5 is from 2021-09-15, Tor Browser 12.0.3 is from 2023-2-17 (but Help -> About Tor Browser incorrectly says it's "Up to date"), etc. etc.