yours is "@ mishathings @ mastodon.social" no spaces
@mishathings I dont know about that software but its probably "mishathings"
@freemo thanks but I found the solution already! (In that software "mishathings" is called the "profile_name". The "account_id"/"user_id" turned out to be the number you get here https://prouser123.me/mastodon-userid-lookup/)
@freemo Thanks for the help, but I was specifically looking for the number that I need to get this running: https://gitlab.com/idotj/mastodon-embed-feed-timeline (It refers to that number as "account ID" and "user ID", a bit confusing). This turned out to be the solution: https://prouser123.me/mastodon-userid-lookup/