Rubidu

Built my own Jarvis: a private AI voice assistant that runs 100% on Mac. For sale, $7,500: see link · [email protected]

[Rubidu @Hey_Rubidu]

Rubidu is now $7,500.

A private AI voice assistant for the Mac. Speech, the model and the voice all run on the device, and it works with the Wi-Fi off. 5,391 tests.

App, source code, brand and accounts, through escrow. DM me or [email protected]

https://t.co/uKlVPeDFhB

[Rubidu @Hey_Rubidu]

I said I was building my own Jarvis for Mac and I'd need help 😭

Now it's real. A month-long journey later (I only started posting here late), it runs 100% on my Mac, and... I'm selling it 🫡

Why? I want to build my own PC, and I don't want my parents paying for it.

[Rubidu @Hey_Rubidu]

I built a private AI that lives in my Mac's menu bar.

Then Apple shipped Siri AI. Same idea, built into macOS.

So Rubidu changes job: it's the harness around the model. Ears, rules, safety, hands, voice. Offline, no account, 5,604 tests. The brain is swappable.

[Rubidu @Hey_Rubidu]

Just a ridiculous idea, in this era of expensive hardware(thanks to AI), how many of us are actually prepared for gta 6😭

The website is itself made by AI💀

https://t.co/DRlViYQYsM

#GTA6 #gta #afford #FYP

[Rubidu @Hey_Rubidu]

Just a ridiculous idea, in this era of expensive hardware(thanks to AI), how many of us are actually prepared for gta 6😭

The website is itself made by AI💀

https://t.co/DRlViYQYsM

#GTA6 #gta #afford #FYP

[Rubidu @Hey_Rubidu]

I'm testing an idea: a Mac app that reads any PDF to you in a natural voice, fully offline, one price, no subscription. Real sample on the page, no studio tricks. If 50 people want it this week, I'll build it.
https://t.co/M8LwGqEquv

[Rubidu @Hey_Rubidu]

The moment Rubidu was ready, Apple finally made Siri smart.

I could have stopped there. Instead I turned Rubidu into a smart harness: the ears, rules, safety and voice any AI needs, fully offline on your Mac.

Same passion. New job. #buildinpublic

https://t.co/Bcr8ST4xhz

[Rubidu @Hey_Rubidu]

The moment Rubidu was ready, Apple finally made Siri smart.

I could have stopped there. Instead I turned Rubidu into a smart harness: the ears, rules, safety and voice any AI needs, fully offline on your Mac.

Same passion. New job. #buildinpublic

https://t.co/Bcr8ST4xhz

[Rubidu @Hey_Rubidu]

I built a private AI that lives in my Mac's menu bar.

Then Apple shipped Siri AI. Same idea, built into macOS.

So Rubidu changes job: it's the harness around the model. Ears, rules, safety, hands, voice. Offline, no account, 5,604 tests. The brain is swappable.

[Rubidu @Hey_Rubidu]

I built a private AI that lives in my Mac's menu bar.

Then Apple shipped Siri AI. Same idea, built into macOS.

So Rubidu changes job: it's the harness around the model. Ears, rules, safety, hands, voice. Offline, no account, 5,604 tests. The brain is swappable.

[Rubidu @Hey_Rubidu]

I'm testing an idea: a Mac app that reads any PDF to you in a natural voice, fully offline, one price, no subscription. Real sample on the page, no studio tricks. If 50 people want it this week, I'll build it.
https://t.co/M8LwGqEquv

[Rubidu @Hey_Rubidu]

@pratikg @Microsoft renaming every weight key so mlx-vlm can read it is real dedication. how did the 4B do on screenshots of actual app UIs?

[Rubidu @Hey_Rubidu]

@MichaelGannotti push-to-talk on the same keys is the right default. talking to agents is great until your accent meets a model name 😅 local dictation got so good this year

[Rubidu @Hey_Rubidu]

@zexigh does the lead hold at the small end too? I run Qwen3-1.7B 4-bit on MLX for a voice assistant, and time to first token matters more to me than decode speed

[Rubidu @Hey_Rubidu]

@deeps4you "why is my monitor stuck at 30 Hz, in one sentence" is the feature I didn't know I needed. plain-word answers to macOS weirdness beat another settings panel every time

[Rubidu @Hey_Rubidu]

@jpaguiarmatos a calm nudge instead of blocking is the right call. I read the screen on-device with Vision in my Mac app, and for me the tricky part was deciding when NOT to say anything. how often does it check?

[Rubidu @Hey_Rubidu]

@randomisdope a petal dial on modifier keys is such a fun interaction. which Apple framework ended up doing the most heavy lifting across the 90 tools?

[Rubidu @Hey_Rubidu]

@mattt keeping a local copy and refreshing it over USB is such a nice touch. menu bar app + local index is the pattern I keep coming back to as well. how big does the cache get after a semester of notes?

[Rubidu @Hey_Rubidu]

Rubidu is now listed for sale ($7,500):

IndieMaker: https://t.co/gTXytRmM42
SideProjectors: https://t.co/tPAmeaMDXn

A private AI voice assistant for the Mac, fully on-device. App, source code and brand. Details: https://t.co/MCCZyo5E7C

[Rubidu @Hey_Rubidu]

@coletoncodes Mine is one repo, and I'm trying to sell it before it joins the graveyard 😅 Building was the easy part, getting anyone to look at it is the real job.

[Rubidu @Hey_Rubidu]

@hojoHQ @iam_chonchol I do both: keep the model loaded while someone's actively talking, then unload after a quiet stretch. On my Mac that's about 0.45 GB idle vs 1.7 GB ready. People notice a cold start much more than RAM.

[Rubidu @Hey_Rubidu]

@ScriptByAI Streaming sentence by sentence is the biggest perceived-speed win in voice. It's how my local Mac assistant gets its first spoken words out in about a quarter of a second.

[Rubidu @Hey_Rubidu]

@jmurillocode I measured on my own voice: whisper base.en got 87% of commands right, small.en-q5_1 93%, large-v3-turbo 97% (slower, more RAM). On macOS 26, Apple's on-device recogniser is free and very good too, worth trying first.