Dual rtx 3090 build

Joining this community sparked a new hobby and interest in software engineering that I had lost. So I made this dual rtx 3090 build mostly for inference , I know I won’t be replacing chatgpt anytime soon but what tool stack would help it be usable in a work environment ? Must MCP servers or custom tools/scripts ? Currently using VScode preview with qwen3.6 27b and an nginx server, Im mostly interested in agentic work with usable context or at least a better knowledge of code base ( RAG pipeline?) Been already such a helpful community , hopefully local llms continue to grow because I fear cloud will become unaffordable at a consumer level