Not sure I can post a link to the kit without incurring the wrath of the admins (or buying an ad…) but perhaps another member might?
Mine’s a CNCd version of the DIY jig I posted about back in May - video
here - and afaik it’s the only jig that allows for a narrow and wider slot in the same jig, without re-setting anything or moving a stop. There’s a preview of it in the current YouTube vid,
here
First batch of the smaller jig (there are two sizes) is in hand now, I should have them in my Etsy in a couple of weeks or so.