Alright, I was able to do it myself after following the instructions linked below:
https://www.youtube.com/watch?v=w-aJFk00POQ
https://github.com/ShailChoksi/lichess-bot
The problem, as I see it, is that there is no mechanism to pass special parameters to the engine other than standard Hash, Threads and a couple of others in config.yml.
Is there a way to pass additional uci parameters? The config.yml syntax doesn't seem to allow it, but I could be wrong.
You can run your engine on lichess.org now
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Re: You can run your engine on lichess.org now
In "uci_options" section you can add any additional UCI option you like.
config.yml.default is just a skeleton example config file to provide something users can start with.
config.yml.default is just a skeleton example config file to provide something users can start with.
Re: You can run your engine on lichess.org now
Thanks, I tried it again and and got no more parsing errors.
https://lichess.org/@/Nezh-BOT
Try it yourself and see how you like its playing style.

Re: You can run your engine on lichess.org now
Does this work on linux? I'm bored and tempted to set up one of my engines on lichess now, probably the atomic variant engine since I've been working on that some recently.
And unrelated, but are the lichess forums locked for new players currently? I thought you just had to play enough to get a stable rating to be able to post, but I'm well past that point and it still says to "play some games" when I go to the forums.
And unrelated, but are the lichess forums locked for new players currently? I thought you just had to play enough to get a stable rating to be able to post, but I'm well past that point and it still says to "play some games" when I go to the forums.