Postnord Delivery
This is a quick and dirty Google Script (Javascript) to fetch the mail delivery dates of Postnord in your ZIP area and store them as events in a personal calendar. The API only reports the next 2 days, so the script is checking every other two days by default because of this.
I wrote this because I was fed up with having to guess (or actually go to the site and manually check) when mail was being delivered. It has served me well for the past couple of years, but I'm planning of rewriting this as a C# application in the future and have it running in my homelab instead.