There is currently I2P guide for RaspiBolt as a bonus guide, plan is to move it to main guide in the future - https://raspibolt.org/guide/bonus/bitcoin/i2p.html .
For RaspiBlitz there is open PR - https://github.com/rootzoll/raspiblitz/pull/3330.
Agree that every guide / bundle using Tor for bitcoind should also add I2P.
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Yas! Let's go!!
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