One of which I am currently most proud of is NIPkaart (Dutch).
It is a geographical map / website, specially built for people who have a disabled parking permit. You can find out prior to your trip, where there is an invalid parking place at your final destination. Currently there is only coverage in the Amsterdam region, but the plans are to map all locations in the Netherlands (including additional fall-back options such as parking garages).
If people benefit from it, I am happy π
For questions, comments or offering of datasets, mail to contact@nipkaart.nl
NFC Scanner
You can use this NFC scanner in combination with the Home Assistant platform.
Every time you hold an NFC tag against this scanner (and the UID of it is included in the list), there will be send an MQTT message to your broker and eventually to Home Assistant. With a LED you also get physical feedback, that the scanner has actually recognized your Tag. Recently I have added the feature to use Over The Air(OTA) updates, with password protection.
I also developed a PCB for it, the files can be found on the Github repository.
DVR Video suitcase
More info in the future