Omar Donnadieu

Engineer at Andela. Building AI for everyone: One, NotArc, Epstein File Explorer. Vibe Coding for Good. 🇲🇽🇺🇸

[Omar Donnadieu @OverviewEffect6]

I built Forge Desktop, a Mac app that runs AI coding agents off your task board.

Write a card in Linear, Basecamp or GitHub Issues, press Start. Agents plan it, build it on a branch, review and test it, then hand you a pull request.

Free and open source.
https://t.co/d9uYnnFdoz

[Omar Donnadieu @OverviewEffect6]

I built a checklist of every Arc screen so NotArc looks like Arc, not just works like it.

Every box ticked. I checked by eye and found 6 misses, like the address bar opening the wrong menu.

Fixed in 0.30.0. Checklists only check what you wrote down.

https://t.co/cGWR4pu9TN

[Omar Donnadieu @OverviewEffect6]

I built safety features so my AI assistant can work while I'm away.

Best bug: a helper kept pausing for a usage limit nobody hit. A link in its own reply contained "429". Now only the AI service's real limit error counts, with a reset time.

https://t.co/heXe88UPKP

[Omar Donnadieu @OverviewEffect6]

A week after launching Forge Desktop, here's what I added: run several projects at once, pick a different AI for each stage, open and steer any running agent, and cards that wait out a usage limit instead of failing.

Still free and open source, for Mac.
https://t.co/63j3J4XLUf

[Omar Donnadieu @OverviewEffect6]

Arc stopped being developed, so I built my own browser for Mac, mostly by telling AI what to build.

About 86 Arc features: Spaces, command bar, Easels, Boosts, Live Folders, Notes, autofill, ad blocking, on-Mac AI.

Software isn't the moat.

Free: https://t.co/cGWR4ptC4f

[Omar Donnadieu @OverviewEffect6]

@Teknium My Hermes story: I wanted an agent my friends could use without ever opening a terminal. So I wrapped Hermes in a Mac app called One. Voice in and out, helpers in the background, routines, memory as plain files on the Mac. Hermes does the real work.

https://t.co/heXe88UPKP

[Omar Donnadieu @OverviewEffect6]

@glowingrec @browsercompany Same frustration, Dia never felt like Arc to me. So I built NotArc: the Arc sidebar, Spaces, folders, auto-archive and command bar, without the AI. Free and open source on Mac: https://t.co/cBeTghgPE1

[Omar Donnadieu @OverviewEffect6]

@0xpampa @browsercompany Years here too. I wasn't ready to let it go, so I built NotArc, an open-source rebuild of Arc's sidebar, Spaces and pinned tabs that no company can shut down. Free, Mac only: https://t.co/cBeTghgPE1

[Omar Donnadieu @OverviewEffect6]

@copilot_shogo Same things I didn't want to lose, so I built NotArc: Arc's vertical sidebar, Spaces, pinned tabs and Cmd+T command bar, no AI, and it imports your Arc setup on first launch. Free and open source, Apple Silicon Macs: https://t.co/cBeTghgPE1

[Omar Donnadieu @OverviewEffect6]

@JoeFernandez Besides Dia, try NotArc. I built it after the sunset news as an open-source rebuild of Arc's sidebar, Spaces, pinned tabs and command bar, no AI, and it brings your Arc setup over on first launch. Free, Mac only: https://t.co/cBeTghghOt

[Omar Donnadieu @OverviewEffect6]

@_radermacher That was my favorite part too. In NotArc each Space gets its own browser profile, so each Google account stays logged in to its own Space and Ctrl+1-9 switches. I built it because Arc is shutting down. Free and open source, Mac only: https://t.co/cBeTghghOt

[Omar Donnadieu @OverviewEffect6]

@Kerroudjm Same boat, I couldn't find one that felt like Arc, so I built NotArc: the sidebar, Spaces, pinned tabs and Cmd+T command bar, and it imports your Arc setup on first launch. Free and open source, Mac only: https://t.co/cBeTghghOt

[Omar Donnadieu @OverviewEffect6]

@mahaqtrombo @arcinternet If your life is in Spaces, that's the part I cared about most too. I built NotArc after the sunset news, and on first launch it imports your Arc Spaces, pinned tabs and archive, so nothing needs re-sorting. Free and open source, Mac only: https://t.co/cBeTghghOt

[Omar Donnadieu @OverviewEffect6]

@dscottlarsen @arcinternet Same here, I use AI all day but didn't want my browser to be AI. So I built NotArc after the sunset news: Arc's sidebar, Spaces, pinned tabs and Cmd+T command bar, no AI. Free and open source, Mac only for now: https://t.co/cBeTghgPE1

[Omar Donnadieu @OverviewEffect6]

@erngut @arcinternet Same reason I couldn't stay on Dia, I don't want AI in my browser either. I doubt they'll open source Arc, so I built NotArc as an open-source rebuild: Arc's sidebar, Spaces, pinned tabs and command bar, and it imports your Arc setup. Free, Mac only: https://t.co/cBeTghghOt

[Omar Donnadieu @OverviewEffect6]

@victor0xFF Same boat, I used Arc every day and ended up building one too: NotArc, an open-source rebuild of Arc's sidebar, Spaces, pinned tabs and command bar for Mac. Happy to compare notes, or use it if you'd rather not start from zero: https://t.co/cBeTghgPE1

[Omar Donnadieu @OverviewEffect6]

@capt_sherman If the part of Arc you'd have wanted is the sidebar and Spaces, I built NotArc after the shutdown news to keep exactly that. It's Chromium underneath so sites work like in Chrome (no extensions yet), and it's free and open source for Mac: https://t.co/cBeTghgPE1

[Omar Donnadieu @OverviewEffect6]

@evgeth @arc @AsideAI @yab_browser @heliumbrowser @diabrowser If you're testing a few, add NotArc to the list. I built it because Arc is shutting down: Arc's sidebar, Spaces and pinned tabs, and it imports your Arc setup on first launch. Free and open source, Mac only: https://t.co/cBeTghgPE1

[Omar Donnadieu @OverviewEffect6]

@yonezmi If you're still looking for somewhere to move: I built NotArc after the shutdown news. It keeps Arc's sidebar, Spaces and pinned tabs, and brings your Arc Spaces and tabs over on first launch. Free and open source, Mac only: https://t.co/cBeTghgPE1

[Omar Donnadieu @OverviewEffect6]

@journeyofani Agree, Dia still isn't Arc. If Vivaldi doesn't stick, I built NotArc for exactly this: Arc's sidebar, Spaces, pinned tabs and Cmd+T command bar, and it imports your Arc setup on first launch. Free and open source, Mac for now: https://t.co/cBeTghgPE1