Bob's Blog

The R Ibex package brings the Ibex query engine to R by providing a dplyr-compatible backend.

Ibex is a new table focused language for analysis of tabular data and time-series.

Anthropic used a swarm of Claude Opus 4.6 agents to build a C compiler for about $20,000 in API costs with minimal intervention.

I’ve just launched a web-based playground for MMIX, Donald Knuth’s RISC architecture from The Art of Computer Programming: https://bolt.bobjansen.net.

NumberPhile did a video on potentially infinite Knight Tours that I found quite interesting.

In my previous post I looked at the Tikz capabilities of ChatGPT.

Sometime ago through HackerNews I found this experiment on drawing a unicorn with ChatGPT on the blog of Adam K Dean.

Be warned: spoilers ahead.

This Advent period I’m participating in the Advent of Code (AoC) using R base + data.table and put the code on GitHub.

CRAN automatically checks C/C++ source code packages for Undefined Behaviour (UB).