do you have any writing up on A03 or elsewhere?

I do have one piece up on an old blog, I keep thinking I should move it over to A03, but I haven't gotten round to it as yet.

An Open Mind

It's set in Elizabeth Bear and Emma Bull's Shadow Unit shared world, from when I was active in that fandom.

There's also a 'hidden extra', a standard part of the Shadow Unit stories, which is here if you miss the link in the main story. And some background on Shadow Unit here.