Hey, thanks for making this mod. Unfortunately, installing barreling group and K2SO together changes the recycle result of empty barrels to a full barrel of a fluid (which fluid depends on other mods installed) instead of steel plates.
While I like the idea of barreling group in general, it does not seem to introduce a necessary functionality for your mod since what it does is rather cosmetic in nature. Hence it might be better to have it as an optional dependency, allowing Pelagos to be installed in K2SO runs, especially since updating K2SO after a potential fix is currently rather tedious.

I think it would be better to fix it instead of marking dependancy as optional. Barreling group is rly good at reducing clutter caused by titanium barrels

Generally, I do agree with you. Fixing it would of course be nice. But that would probably best be done in K2SO, which introduced a couple breaking changes recently. So updating it in a running save is currently very difficult. I would have liked adding Pelagos to my save without finding some workaround, and imho a cosmetic mod should not make me (and potentially others; I don´t think I´m the only one being in the middle of a K2SO run who would like to enjoy more planets) do so. And in the end the barrel recycling is not an important part of a base anyways and only means minor changes to the build. Either way, this is your mod so your opinion counts :)

I already reached K2SO and barreling group devs so I hope it will be fixed soon
I don't see point in making it optional just to revert it later. It is rly helpfull mod

but if you want to remove it .
It's not deeply tied with my mod

you can just open
your mods folder -> pelagos_version.zip -> info.json

and remove this line:

 "barreling-group2",

after that you should be able to just remove mod

That is really nice of you, tyvm!

good news
based on changelog I think
it is fixed in newest version of K2SO

Version: 1.6.8
Date: 2025-01-11
Changes:
- Rised required k2so-assets version to 1.0.3
Bugfixes:
- Fixed Pelagos titanium barrels recycled into ethanol barrels