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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.
The Praxix unit test is only 31KB: https://github.com/curiousdannii/if/blob/master/tests/praxix.z5
It's of course fun to write your own Z-machine, but in case you need some inspiration you can look at Ozmoo which runs on 6502-type computers like C64, C128, BBC, Plus/4 and the MEGA65. Supporting a target model is mainly a matter of rewriting screenkernal.asm and disk.asm to fit your I/O-devices.
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