The Journal you already wrote
Here's my Saturday: debug a SwiftData crash. Switch to recording training data for a screen prediction model. Fix a ChromaDB connection error. Set up a WhatsApp bot. Research Ohalo's genetic breeding tech for fun. Look up tmux because I've never used it. Text my brother.
By 2pm itβs a blur.
Your screen knows, though. Every tab you opened, every terminal command you ran, every error message that flashed by β it was all right there in front of you. You just didn't write it down because you were busy actually doing the work.
Your screen is the journal you already wrote
I've been running Memex for a few months now. It screenshots my displays, OCRs the text, and indexes everything locally.
Memex is the difference between "I have no idea where I left off with that PR from last week" and "oh right, I was in the middle of fixing the MP4 segment encoding in the capture pipeline."
It reduces switching costs to close to zero.
And I built it to be a simple as possible.
The whole system is four steps
1 Capture / minute β OCR β index β search.
No ML. No fancy embeddings (yet). Just screenshots and text extraction into a vector database.
It runs locally.
(Note: When you chat your data is sent to OpenAI or Anthropic.)
At some point I may add support for running open source models on your Mac. This would keep all your data local forever.
The Interface Is Simple


That's it. Your screen was already the journal. Memex just makes it readable.