ArckARCK
Notes

How it works, underneath.

Occasional writing about the parts of cross-listing that are more complicated than they look.

What happens the moment something sells

The most valuable thing Arck does is the part you never watch: taking an item down everywhere else before someone buys it twice.

July 14, 20264 min read

Why four of five marketplaces need a browser extension

Arck ships a Chrome extension not for convenience, but because most resale platforms have no publishing API at all.

June 30, 20265 min read

One plan, one price, and no tiers

Tiered pricing on a tool like this means charging the people who use it most for the privilege. We would rather not.

June 9, 20263 min read