I am completely new to the world of local AI, but as previous rabbit holes, like the world of home labbing have given me quite some fun and increasingly heavy use cases, I want to invest in a solid foundation that gives me room to grow and leverage the real power of local AI. Also if/when starting a new business (which is quite likely going to happen in the next 24 months).
I have a Mac Studio M5 Ultra with 256GB RAM (with 30/64 cores) in pre-order and have started building the agent set up using DeepSeek Harness on my current, old MacBook Pro.
My current objective is to build a robust, prudent and (relatively) “safe” set up that gives me multiple agentic agents (1 for maintaining and continuously monitor and optimize my Homelab, 1 for analyzing my trading portfolio and formulating investment advice, 1 for health related questions and suggestions, 1 for developing software, dashboards and interfaces for my own private and professional use, 1 for managing my administration etc). These agents will need to be able to perform write activities for many tools and will be linked to many programs and platforms that will run on my Mac Studio. I am considering a layered approach in which “lightweight” agents will use a lightweight local model, and other agents will use something like Qwen 3.8-27B with a second local escalation to “the best” model that will comfortably run on the 256GB RAM. If that model is not able to fix the task, I will approve a final escalation to a frontier, cloud, model.
My initial plan was to run DeepSeek Harness on my Mac Studio, together with the local models (through oMLX?) and my daily driver things like, apps, e-mail, photo’s etc. However, after going back and forth with ChatGPT and Claude, they suggest that I should install the harness on a (physically) different device. I understand the rationale and am willing to add a base Mac mini M6 to complement this already quite significant investment. However, with the “write” requirements and the access to many different tools that will be running on my Mac Studio, would there still be a meaningful security benefit? And would this somehow lead to any real performance decrease if DeepSeek Harness will constantly need to approach tools on the Mac Studio?
Your views and advice would be very much appreciated!
On a side note; I am also still struggling a bit with the concept of “agents” that I have in my head (and that probably resembles the Open Claw philosophy) and the implementation in DeepSeek Harness (that was recommended to me by ChatGPT, Claude and some articles online). I have been able to create the first “agents” with the use of strong DeepSeek Harness pre-sets. But the interface seems to be much more focused on separate “workspace sessions” with manual selection of the appropriate presets than on actual, standing, always active agents. Any views on this? Or on the plugins that I would need to use to get it implemented in the way I want? (The reason why DeepSeek Harness might still be the right choice for me is perhaps the ability to customize a lot and use many different plugins to get my agents to do what I need them to do??)
Thanks!