Norbert Hartl - Soil: a database for fun and profit - 26 November 2025

For our last 2025 meeting, Norbert Hartl will present Soil - an object oriented database implemented in Pharo. Soil ( https://github.com/ApptiveGrid/Soil ) is an object oriented database implemented completely in Smalltalk/Pharo. It makes it easy to build a persistent solution without the burden of mapping everything to some external DSL/database. It supports storing arbitrary graphs and enables transparent access to them. It has binary search indexes to make lookups of huge collections quite efficient. It is the main database behind ApptiveGrid - low code tool to build business processes ( h…