-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
FTPD if you don't want to take out the SD card every single time to copy some files https://github.com/mtheall/ftpd/
Not necessary but I have it installed a nice app to check battery health https://github.com/Core-2-Extreme/Battery_mark_for_3DS
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.