SystemsWithLee

Solving my problems using software || Buidling in public
------------------
Road to $1k MRR

Built
-----

[SystemsWithLee @SystemsWithLee]

I'm building YouTility.

A macOS menu bar app that watches your screenshots folder and renames every file using on-device AI.

Screenshot 2026-06-02 at 11.32.41.png
→ stripe-dashboard-revenue-june.png

Silent. Instant. Private. No API cost.

#swiftui #buildinginpublic #macos

[SystemsWithLee @SystemsWithLee]

@HelmsAPI I used Apple's Foundation Models. It's an out of the box on-device model provided by Apple.

[SystemsWithLee @SystemsWithLee]

I'm building YouTility.

A macOS menu bar app that watches your screenshots folder and renames every file using on-device AI.

Screenshot 2026-06-02 at 11.32.41.png
→ stripe-dashboard-revenue-june.png

Silent. Instant. Private. No API cost.

#swiftui #buildinginpublic #macos

[SystemsWithLee @SystemsWithLee]

@nalinrajput23 Swift

[SystemsWithLee @SystemsWithLee]

@kelvinbuildss https://t.co/H1l1BXxEzs

[SystemsWithLee @SystemsWithLee]

I'm building YouTility.

A macOS menu bar app that watches your screenshots folder and renames every file using on-device AI.

Screenshot 2026-06-02 at 11.32.41.png
→ stripe-dashboard-revenue-june.png

Silent. Instant. Private. No API cost.

#swiftui #buildinginpublic #macos

[SystemsWithLee @SystemsWithLee]

@anupamrjp https://t.co/uyhSFBKtZl

https://t.co/H1l1BXxEzs

[SystemsWithLee @SystemsWithLee]

I'm building YouTility.

A macOS menu bar app that watches your screenshots folder and renames every file using on-device AI.

Screenshot 2026-06-02 at 11.32.41.png
→ stripe-dashboard-revenue-june.png

Silent. Instant. Private. No API cost.

#swiftui #buildinginpublic #macos

[SystemsWithLee @SystemsWithLee]

@Kyle_Structure Hey, I'm Lee.

https://t.co/H1l1BXxEzs

[SystemsWithLee @SystemsWithLee]

I'm building YouTility.

A macOS menu bar app that watches your screenshots folder and renames every file using on-device AI.

Screenshot 2026-06-02 at 11.32.41.png
→ stripe-dashboard-revenue-june.png

Silent. Instant. Private. No API cost.

#swiftui #buildinginpublic #macos

[SystemsWithLee @SystemsWithLee]

@araseb_ https://t.co/uyhSFBKtZl

https://t.co/H1l1BXxEzs

[SystemsWithLee @SystemsWithLee]

I'm building YouTility.

A macOS menu bar app that watches your screenshots folder and renames every file using on-device AI.

Screenshot 2026-06-02 at 11.32.41.png
→ stripe-dashboard-revenue-june.png

Silent. Instant. Private. No API cost.

#swiftui #buildinginpublic #macos

[SystemsWithLee @SystemsWithLee]

@ben_sage Sadly, I get high on my own supply.

[SystemsWithLee @SystemsWithLee]

@master_jpma Hey Juan, let's connect!

https://t.co/H1l1BXxEzs

[SystemsWithLee @SystemsWithLee]

I'm building YouTility.

A macOS menu bar app that watches your screenshots folder and renames every file using on-device AI.

Screenshot 2026-06-02 at 11.32.41.png
→ stripe-dashboard-revenue-june.png

Silent. Instant. Private. No API cost.

#swiftui #buildinginpublic #macos

[SystemsWithLee @SystemsWithLee]

@Guronnimo https://t.co/H1l1BXxEzs

[SystemsWithLee @SystemsWithLee]

I'm building YouTility.

A macOS menu bar app that watches your screenshots folder and renames every file using on-device AI.

Screenshot 2026-06-02 at 11.32.41.png
→ stripe-dashboard-revenue-june.png

Silent. Instant. Private. No API cost.

#swiftui #buildinginpublic #macos

[SystemsWithLee @SystemsWithLee]

@ItsAlexhere0 Love that for you!

[SystemsWithLee @SystemsWithLee]

@rdbuilds7 https://t.co/H1l1BXxEzs

[SystemsWithLee @SystemsWithLee]

I'm building YouTility.

A macOS menu bar app that watches your screenshots folder and renames every file using on-device AI.

Screenshot 2026-06-02 at 11.32.41.png
→ stripe-dashboard-revenue-june.png

Silent. Instant. Private. No API cost.

#swiftui #buildinginpublic #macos

[SystemsWithLee @SystemsWithLee]

Mac development is full of surprises coming from iOS.

But not everything is different. SwiftData is identical on macOS. Same @Model, @Query, and modelContainer setup.

For YouTility, every rename gets logged: old name, new name, timestamp. One-click undo. Thanks to SwiftData

[SystemsWithLee @SystemsWithLee]

@KevinRudman I'm working with 21st August.
Will let you know once it's live!

[SystemsWithLee @SystemsWithLee]

YouTility has no dock icon.
No main window.
No visible presence at all.

That's not an oversight, it's the entire design.
It lives in your menu bar. You take a screenshot. The file gets renamed. You never touch the app. The best utility is the one you forget is running.

#macOS

[SystemsWithLee @SystemsWithLee]

@v_pradeilles Thank you so much 🙏!

[SystemsWithLee @SystemsWithLee]

The AI in YouTility costs exactly $0 to run.

I'm using Apple's Foundation Models; on-device AI built into macOS 26.

No API key. No per-rename bill. No data leaving your Mac.

Every screenshot rename happens locally, privately, instantly.

#buildinginpublic #swiftui #ondeviceAI

[SystemsWithLee @SystemsWithLee]

@PiotrekJeremicz @binding @PiotrekJeremicz I enjoyed your presentation!

[SystemsWithLee @SystemsWithLee]

@martingranadosg Small world - looks like we've got the same taste in menu bar icons 👀
I'm building YouTility, an on-device AI screenshot renamer for macOS. Check it out: https://t.co/uyhSFBKtZl

[SystemsWithLee @SystemsWithLee]

@MacdevM Congratulations!🎉!