make-directory:~/what-we-build
Most of what we build runs inside someone else’s business, and those systems, data, and roadmaps are theirs to talk about rather than ours. So here is our own — the products, tools, and research we build, ship, and maintain, all of it public and open to read.
products
Discover what exists in a mainframe COBOL estate, assess how hard it would be to move, and support the migration. Sold to banks, insurers, and government. Hybrid model — the toolkit is Apache-2.0, Cartograph is commercial.
Visit CobolScope→A playful phrase-building mobile app published by Make Directory Developers for iOS and Android.
open source
Three tools that form a method: inventory and dependency analysis over a COBOL estate, an experimental COBOL-to-Rust transpiler verified by differential testing, and a FastAPI bridge that keeps compiled business logic reachable during a migration.
Visit COBOL modernization toolchain→A registry-driven multicloud infrastructure canvas for modeling cloud architecture as a typed graph.
A layered, broker-agnostic algorithmic trading engine that scans, backtests, and paper-trades strategies. Educational software, not financial advice.
research
Studying how software can develop an understanding of complex human activity: operational memory, human–AI collaboration, and computational models of work. Blackboard, an MCP-native operational context interface, is the active project.
Visit Make Directory Labs→why this is here
If you are trying to work out whether we can handle what you have, spend ten minutes in one of these repositories. The code, the commit history, and the reasoning behind the decisions are all there. Then come and tell us about your situation, and we can have a much shorter conversation about whether we are a fit.