In my brief test, it did OK but I'm not sure I set it up for success very well. I have a bunch of skills[1][2][3], and I don't think I set those up in OMP for deepseek to use first. Claude uses all 3 a lot so they're probably part of the reason it works.
[1] https://github.com/march-language/march/blob/main/.claude/sk...
[2] https://github.com/march-language/march/blob/main/.claude/sk...
[3] https://github.com/march-language/march/blob/main/.claude/sk...