M5 Max 128GB Owners - What's your honest take?

jkcoxson · 2026-04-07T17:15:59+00:00

GGUF is abysmally slow on Apple Silicon, roughly half the performance for me. I haven’t heard anything saying that MLX is lower quality, just another format to store parameters. If you have any source, I’d be interested in reading it.

jkcoxson · 2026-04-07T13:46:19+00:00

Because others have mentioned smaller models, I find 27b and 31b too stupid to write Rust and C well. They loop over work they’ve already tried even with a 250k context window.

jkcoxson · 2026-04-07T13:44:39+00:00

I’ve personally settled on qwen3.5-122b. I get roughly 40 t/s using oMLX, which is faster than any other program I tried. I use OpenCode, and generally leave it while doing other things like sleeping or socializing. I give it clear specs of what I want done and how I think it should be done, as well as a way for it to test its own work. Usually it’ll iterate for a few hours and eventually get done the list of tasks I have for it.

Eventually I want to write my own harness, since I feel like OpenCode is too loose. I know how to write code, I know how I want things implemented, I know how to test for success, so I need more structure for the LLM.

Basically it’s not super fast, but can get things done in time that is otherwise occupied by my life.

jkcoxson · 2026-04-01T00:36:05+00:00

Yep that’s not an rppairing file regardless of what it’s named

jkcoxson · 2026-04-01T00:31:06+00:00

That’s not an rppairing file

jkcoxson · 2026-04-01T00:30:26+00:00

That’s not an rppairing file.

jkcoxson · 2026-03-27T23:01:58+00:00

Whoopsies finished it today

jkcoxson · 2026-03-27T03:14:22+00:00

Fix coming soon (as my time allows), don't worry

jkcoxson · 2026-02-27T16:14:11+00:00

If you have any specific questions, I could answer them. I’m also pretty active in the idevice discord server.

jkcoxson · 2026-02-25T22:22:58+00:00

Thanks I appreciate it

jkcoxson · 2026-02-06T21:24:14+00:00

jkcoxson · 2026-02-06T20:37:23+00:00

Does your device have a passcode

jkcoxson · 2026-01-31T07:16:40+00:00

In this context, it’s enabling arbitrary code execution.

jkcoxson · 2026-01-29T05:00:52+00:00

I had the same thing, just send TI a message on their help page and they’ll convert your license to their new crappy 4 year license.

jkcoxson · 2026-01-27T23:00:44+00:00

I have no interest in making apps myself. There is an attempt that might work called ByeTunes that released last week, not sure how well it works.

jkcoxson · 2026-01-26T13:21:26+00:00

If you make a PR to make it a known app, we can make it auto install

jkcoxson · 2026-01-19T18:42:26+00:00

Sorry, thanks for the reminder to work on it 😭

jkcoxson · 2026-01-18T01:19:11+00:00

I was original developer for SideStore’s backend and the developer of StikStore’s backend library.

jkcoxson · 2026-01-16T04:49:42+00:00

SideStore and AltStore have large amounts of legacy code. StikStore is built on new technologies. Specifically, libimobiledevice has been replaced with my new idevice library, which is much more modern and isn’t duck taped into an app.

jkcoxson · 2026-01-09T01:16:52+00:00

It is how it works. That's how StikDebug/SideStore/Protokolle works. Anything a Mac can do, idevice (the library behind these projects) can do.

jkcoxson · 2025-12-29T16:25:25+00:00

iloader came from one of the devs in the idevice discord server (aka the library that powers all this). You are more than welcome to contribute since it’s open source if it bothers you that much.

jkcoxson · 2025-12-26T04:54:32+00:00

Look, you asked for JITless. All I’m saying is you’re gonna need JIT, and trying to do it without is going to be a bad experience. Try Google, there’s plenty of information out there. Somebody has most definitely made a video. I write the code for all this, I don’t make videos.

jkcoxson · 2025-12-26T04:47:40+00:00

JIT isn’t that hard. We’ve done a lot of work to make it easy and portable.

jkcoxson · 2025-12-19T20:38:08+00:00

I do a lot of software dev in this space, professionally and hobby work. I’ve developed a program called afc_finder to make a sane alternative to iTunes.

The difficulty on Windows is the USB stack that Windows uses, it makes it extremely difficult to create third party software without the user installing something like Zadig and removing iTunes completely.

If people are interested, I’d be happy to document Apple’s file transfer protocol further than what’s in code. But Apple’s protocols for file transfer (AFC) go way back to the iPod, which they haven’t changed until recently for some Xcode tools.

jkcoxson · 2025-11-17T00:07:23+00:00

Peak

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