Show HN: I created a miniature SaaS to automate putting addresses on envelopes
envelopegenerator.com
envelopegenerator.com
I've written a SaaS not as niche as this, but also useful for people printing stuff on paper: https://templates.alhur.es/ (I hope it will make sense for you, otherwise please let me know how to improve.)
I was going to ask how this is different from <insert-service-here> but I realized that I couldn't think of a service that made it this simple. Kudos!