Are you asking about what the bot does or how to use this bot?

What it does: The same thing as lemmit.online, but it copies the comments of the original Reddit post to Lemmy as well.

How to use:

1. Set up a Lemmy instance and make the rate limit very high (I'm happy to make a detailed guide on this if it's needed)
2. Create an account for the bot
3. Create a Lemmy community that will store the crossposts
4. Download the bot's code from Github
5. Edit the files named .env and config.yaml so the program knows the bot's username, password, what subreddits to fetch content from, and how often
6. Run the program
7. Done! Read Reddit posts and comments directly on Lemmy

This instance doesn't allow you to create an account and lemmyverse.net doesn't index bot instances.

@admin, lemmynsfw.com uses a patched version of Lemmy that allows NSFW posts and communities to be shown to logged-out users. They don't seem to have updated it for 0.18.0 yet but this is the snippet that removes the restriction if you wish to patch it yourself.

Unrelated to this issue but concerning this request about /r/UkraineWarVideoReport, does increasing Max actor name length in the admin panel from 20 solve the problem?