Show HN: L88 – A Local RAG System on 8GB VRAM (Need Architecture Feedback)
adithyadrdo Tuesday, February 24, 2026Hey everyone,
I’ve been working on a project called L88 — a local RAG system that I initially focused on UI/UX for, so the retrieval and model architecture still need proper refinement.
Repo: https://github.com/Hundred-Trillion/L88-Full
I’m running this on 8GB VRAM and a strong CPU (128GB RAM). Embeddings and preprocessing run on CPU, and the main model runs on GPU. One limitation I ran into is that my evaluator and generator LLM ended up being the same model due to compute constraints, which defeats the purpose of evaluation.
I’d really appreciate feedback on:
Better architecture ideas for small-VRAM RAG
Splitting evaluator/generator roles effectively
Improving the LangGraph pipeline
Any bugs or design smells you notice
Ways to optimize the system for local hardware
I’m 18 and still learning a lot about proper LLM architecture, so any technical critique or suggestions would help me grow as a developer. If you check out the repo or leave feedback, it would mean a lot — I’m trying to build a solid foundation and reputation through real projects.
Thanks!