Show HN: A semantic-search writing workspace so AI doesn't forget your docs

I always struggled whenever I had to work on a lot of documentation and my own writings. Most AIs now have a 1M context window, but idk it's me or what, after I send a few files and have a few rounds of conversation, the AI starts forgetting the original files.

The one tool I think does this really well is Google’s NotebookLM. But what if I want a single workspace where I can both write and grow my files over time, instead of using NotebookLM more like a study tool for exams?

In IDEs, people use semantic embeddings, .md files and all sorts of tricks to keep the AI low-cost while understanding the whole codebase. So I made a writing workspace inspired by NotebookLM and Cursor. I can keep adding documentation while writing, and the AI uses semantic search in the background to keep costs low while still staying in context. (lemona.studio itself is free, you just use your own API key. For me, after a month, it’s been around $10 while working with thousands of pages of documentation using Gemini 3 Flash.)