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Casey

@Cmillstein1

I build all of the things

youtube.com/caseymillz
Joined September 2011
  • Tweets11.3K
  • Following1K
  • Followers626
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Photo by Casey (@Cmillstein1)Photo by Casey (@Cmillstein1)Photo by Casey (@Cmillstein1)Photo by Casey (@Cmillstein1)Photo by Casey (@Cmillstein1)Photo by Casey (@Cmillstein1)Photo by Casey (@Cmillstein1)Photo by Casey (@Cmillstein1)Photo by Casey (@Cmillstein1)Photo by Casey (@Cmillstein1)
someone turned your iPhone into a second display for your Mac AND a control deck for your AI agents. Claude Code asks something, your phone lights up, one tap to approve. it is $9.99 once, no subscription. your phone just became your agent's supervisor.
Casey (@Cmillstein1) profile pictureCasey@Cmillstein1Oct 29
5 coding agents running. One needs you. You're in the kitchen. Sidekeys puts every Claude Code and Codex session on your iPhone. Tap Approve, keep going. Plus one-tap keys for Xcode, Zoom and Final Cut, and a second screen. TestFlight is open. Comment "Sidekeys" for the link.
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I love hockey stats. @NHL be like “wow, that is the first time in HISTORY that @FlaPanthers scored at exactly 7:45pm on Friday, October 30th” 😂.
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Casey retweeted
Casey (@Cmillstein1) profile picture
Casey@Cmillstein1Oct 29
5 coding agents running. One needs you. You're in the kitchen. Sidekeys puts every Claude Code and Codex session on your iPhone. Tap Approve, keep going. Plus one-tap keys for Xcode, Zoom and Final Cut, and a second screen. TestFlight is open. Comment "Sidekeys" for the link.
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5 coding agents running. One needs you. You're in the kitchen. Sidekeys puts every Claude Code and Codex session on your iPhone. Tap Approve, keep going. Plus one-tap keys for Xcode, Zoom and Final Cut, and a second screen. TestFlight is open. Comment "Sidekeys" for the link.
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TestFlight: sidekeysapp.com/?t1
Sidekeys: Use Your iPhone as a Second Screen for Your Mac

Sidekeys: Use Your iPhone as a Second Screen for Your Mac

Plug in your iPhone and your Mac gets a new display, plus keys that change with the app you're using. Built for iPhone Duo.

sidekeysapp.com
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Where my iPhone Duo users at? TestFlight launching soon 👀
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I’ve been building something insane. iPhone Duo users are about to get a remarkable tool
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So… who’s buying domains
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Twitter was better
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In addition to glizzy.si, I secured doomscroll.si and showstopper.si. LEGENDARY PULLS
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hey @atomHQ - help me sell the absolute banger glizzy.si so I can match your 7.5% fee and we can donate 15% to charity.... thoughts? @oscarmayer @HebrewNational @originalnathans you guys in?
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I have acquired the best .si websites ever
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Does X even put my posts out?
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And this is why I still call it twitter lmao
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Do you remember when you joined X? I do! #MyXAnniversary
Image from Casey (@Cmillstein1)
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How I grew my tiny idea into a multi million dollar SaaS business 🧵
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I didn't
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I worked hard on this. pls don't ruin it ruinmysite.lol
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building something that people don't remember how to do anymore
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Okay real question for those app developers out there… what’s the secret?
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