More Bioinformatics
After FASTA, I got interested in gff3. The link to the grammar for this file is here: antlr/grammars-v4. You can read about gff3 here.
Similar Posts
pdp-7 Unix
Unix version 0 was written in 1963 by Ken Thompson, on a PDP-7. Recently, the source code code Unix V0 has been discovered, and you can read it here, as pdf scans of printouts. You can read about the discovery, and the effort to boot Unix V0 on a real PDP-7 here. The project home…
Every house needs a Service Bus
After all, now that we have wireless thermostats, door locks, outlets, dimmers, alarms, garage doors, and motion sensors, it only makes sense to publish events onto a Service Bus. In my case I used Mosquitto in a FreeBSD jail as my broker. My home controller is a HomeSeer. There are MQTT plugins available, but I…
A simple modelling language
Recently I had reason to get interested in process modelling. Ultimately I ended up writing an Antlr4 grammar for Modelica (here), but in the mean time I came up with SML (Simple Modeling Language). The Antlr4 grammar is sml.g4. The characteristics I wanted in my own modeling languages were: Ability to define models as text files…
Cross-Compiler fun
I’ve been interested in OS development for a while, and now have a prototypical ARM OS on my private source tree. For that I used gcc-arm-embedded, which worked quite well. However, as time went on, i became interested in building my own tool chains. I started with this list of requirements An up-to-date C/C++ compiler,…
Home Automation DevOps
Home automation is coming into the mainstream a with recent offerings from the big tech companies, and I’m interested in it too. I’ve had a number of home automation controllers, most recently an H3 Pro SEL from HomeSeer. I’ve also become quite interested recently in DevOps monitoring, using InfluxDB, and Grafana. Sensu, Telegraf and Prometheus…
That’s a lot of voxels
A typical Minecraft world, which is made of voxels, is 128 blocks high and 2048 blocks wide and deep, for a total volume of 536,870,912 blocks. We’ll call it 500 million. So now that we have LLM’s like Claude, we can get some advice on how to build bigger worlds, which I did. I asked…