How it works
From decision to permanent record, in four steps.
Create a project
Start a project for a board, module, or subsystem — one decision log each.
Record decisions
Log the choice you made the moment you make it, while the context is still in your head.
Capture reasoning and evidence
Attach the calculation, the datasheet page, the test result — whatever backs the decision up.
Build engineering history
Every entry accumulates into a searchable, permanent record of why the design is the way it is.
Product
Built for how engineering decisions actually happen.
Decision Logs
Every decision lives in one place, in the order it happened — status, reasoning, and all.
Project Organization
One project per hardware board keeps decisions scoped to what they belong to.
Engineering History
Nothing gets overwritten. Revisit any decision months later and see how it evolved.
Collaboration
The whole team reads from the same record instead of relying on tribal knowledge.
Traceability
Link a decision straight to the datasheet page or calculation that justified it.
PCB Design
Sketch the schematic, then upload manufacturing files to preview the board stackup — without leaving the decision log.
Code, Cited
A real syntax-highlighted editor for every language you ship in. Import a source file and cite the exact lines behind a decision.
Interactive Calculators
Built-in calculators for common hardware math, with LaTeX-rendered results you can drop straight into a decision.
AI Assistant
Ask questions about any project, decision, or calculation — the assistant knows your whole decision log.