I don't know about the author, but I recently saw an article where the author of Claude code apparently spins up multiple instances at once (note that it could have just been a marketing ploy to get people to use more tokens)
Just use Git worktrees and a lightweight VM environment (I like macOS native sandbox-exec) and you can spawn as many sessions as you want. I've run upwards of 30 at once on my M2 Pro with no noticeable resource impact.
I went from an M1 16GB to M5 Pro 48GB. I'm running Qwen 3.5 with it locally. I've been sending it and Opus 4.6 the same prompts in identical copies of codebases, using Claude Code for both (using ollama to launch with Qwen). It is about 4x slower than sending the request to Opus. The results are not nearly as good either.
One task that I sent to both was to make a website to search transcription files generated from video files that were also provided. I wanted to have the transcriptions display and be clickable. When clicked have the video skip to that point in play. The Opus website looked nice, and worked well. Qwen couldn't get the videos to play.
Now, for day-to-day tasks, the M1 wasn't a slouch, but the M5 Pro is still a big step forward in terms of performance.
That's helpful insight. My prediction is that as it keeps getting more expensive for the big players to run these models, we will start to see some kind of hybrid workload where they offload some of the work to your computer for smaller agents while keeping the orchestration and planning running in the data centers.
So I think the investment in the extra hardware is worth it, even if you don't currently plan on running LLMs locally.
Cmd+Space to open spotlight, type in the first 3 or 4 letters of whatever you're trying to do (an application to open, or a system setting to change) and then Return gets me about where I need to go most of the time. Cmd+Tab and Cmd+` for window selection. I don't do much else on the OS itself so my bases are covered.
I had a fun one where Opus 4.6 could not properly export a 3D model to a 3MF for multi-color 3D printing. Ultimately I ended up having it output each color individually and I just import them together into the slicer.
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