anywhere to easily trade cards? Steamtrade match seems broken

https://steamcommunity.com/groups/tradingcards/discussions

This userscript takes a while if you have a lot of badges, but is pretty useful in light of Steam's rate limiting. I don't know how many will have Summer Sale cards left to match, though.
https://www.steamgifts.com/discussion/1c2XK/userscript-asf-stm-v2-trade-match-with-asf-public-listing-updated

Mine didn't work or sync because my inventory was private so you may want to check that and make it public. Can take a while before your inventory syncs.

I usually use the steamcardexchange trade bot for the steam sales cards, can be a bit difficult to get trades in during the sale, especially when it's overstocked on a card or running out of one.