Everything we have learned running dedicated Apple Silicon machines. What macOS CI costs and when self-hosting wins. What it takes to keep an AI agent running on a Mac all day. Learned on real hardware.
What it takes to keep Claude Code running all day on a Mac: a machine that never sleeps, a logged-in session, sign-in with the Claude subscription you already have, and phone control through Remote Control.
The checklist for a Mac that runs AI agents unattended: power settings, automatic login, a supervised session, screen access for when it gets stuck, wired network and battery backup. Learned on real machines.
How to keep OpenAI's Codex CLI running all day on a Mac: sign in with your ChatGPT account, keep a login session alive, and give it a real desktop and browser to work in.
A straight comparison for someone who wants an always-on Mac for AI agents. What a Mac mini costs to buy and run, what renting one ready-made costs, and which fits depending on how long you need it and who does the setup.
The honest capabilities and limits of running an AI agent on a Mac in someone else's rack: what works, what is unreliable, and what is off the table, so you know before you rent.
Your Mac went to sleep and Claude Code froze. Fix it with caffeinate, pmset, or one setting for a closed lid. Copy the commands, in the order to try them.
The tmux setup for a coding agent that has to outlive your terminal window, your SSH connection, and your commute. Start, detach, reattach from a phone, and recreate the session after a reboot.
How to let Claude Code or Codex work with nobody watching: permission modes, allow and deny rules, hooks, git guardrails, scoped credentials, and the short list of things an unattended agent should never be able to do.
A repeatable way to hand a backlog to Claude Code or Codex at night and review clean pull requests in the morning: how to write the tasks, how to isolate each one, what the agent may do alone, and the ten-minute morning review.
An honest comparison of the places a Claude Code or Codex agent can live all day: your laptop, a Linux VPS, an EC2 Mac, a Mac mini you buy, or a hosted Mac mini. Costs with sources, what each cannot do, and a decision rule.
What an AI agent working on an iOS or macOS app can only do on macOS: build with Xcode, run the simulator, take screenshots of the result, and sign a build. The exact commands for the loop, and what a Linux box can and cannot do.
Install OpenClaw on a Mac mini with the official script, run the gateway as a LaunchAgent so it survives reboots, and lock it down. Tested on macOS 26.
Install Nous Research's Hermes Agent on an Apple silicon Mac, connect a model, run the messaging gateway under launchd, and set approvals and allowlists safely.
Claude Code channels push Telegram, Discord or iMessage messages into a running session. How to set up the Telegram plugin and keep the session alive on a Mac.
Which local LLMs fit a Mac mini with 16, 48 or 64 GB, how to install Ollama or MLX, and how to keep a model server running. Real sizes from the Ollama library.
Install NanoClaw on a Mac mini with the official setup script. Keep Docker and its launchd service up after reboots, and connect a model with an API key.
Install the HKUDS nanobot agent on a Mac mini with the official script. Pick a model in its WebUI and run its gateway as a LaunchAgent that survives reboots.
What a self-hosted macOS runner is, when it beats GitHub-hosted runners, and how to run one without managing the hardware yourself. Flat $139/mo.
A GitHub Actions macOS runner costs $0.062 to $0.102 a minute. That is about 10x Linux. 3,000 minutes a month comes to $240 to $480. Here is how to cut the bill.
How renting a dedicated Mac mini for continuous integration works, what it costs versus buying, and the Apple license rules that make leasing legitimate.
Comparing Xcode Cloud with a dedicated self-hosted macOS runner: pricing model, lock-in, workflow control, and who each option genuinely suits.
GitHub Actions costs $0.006 a minute on Linux, $0.010 on Windows and $0.062 to $0.102 on macOS. The Free plan includes about 2,000 minutes. Every rate is in one table.
Two different products for the same job. When per-minute GitHub-hosted runners make sense, when a dedicated MacStadium machine does, and where a flat-price dedicated runner fits between them.
A like-for-like cost comparison of GitHub-hosted macOS runners against a dedicated Mac at three usage levels, including the minutes you pay for rebuilding caches and the time spent waiting.
Nine concrete changes that reduce billed macOS minutes on GitHub Actions: move work to Linux, cache the right paths, cancel superseded runs, trim the matrix, and know when flat pricing wins.
A working iOS pipeline on GitHub Actions in one pass: workflow skeleton, Xcode selection, dependencies, building and testing on a simulator, code signing with an App Store Connect API key, archiving, and TestFlight upload.
Install GitLab Runner on an Apple silicon Mac, register it with a glrt- runner token, keep it running after reboots, and run Xcode jobs with a .gitlab-ci.yml.
Connect a Mac to your Jenkins controller as an inbound agent over WebSocket, run it from a LaunchAgent so it returns after reboots, and build iOS in a pipeline.
Install CircleCI machine runner 3 on macOS with Homebrew, create a resource class and token, start it in the GUI domain, and target it from config.yml.
Install the Buildkite agent on macOS with Homebrew, add your cluster token and queue tag, start it at login with launchd, and run Xcode steps in a pipeline.
Install fastlane on a Mac build server, sign with match in readonly mode, log in with an App Store Connect API key, and run test and beta lanes from any CI.
Run XCUITest UI tests from the command line with xcodebuild, manage simulators with simctl, run tests in parallel, retry flaky ones, and read result bundles.
Write and test React Native on Windows or Linux, then build iOS on a cloud Mac. A GitHub Actions workflow we ran on macos-26 with Xcode 26.6, and its output.
Which App Store steps need macOS and which work from Windows: enrollment, API keys, signing, building and uploading from a cloud Mac, and TestFlight on iPhone.
Apple's tools only run on macOS, but you do not have to own a Mac. Four options ranked, from cloud CI to buying used, with sourced prices and honest tradeoffs.
Xcode does not run on Windows. How to use it on a remote Mac from your PC: VNC over a private network or a browser tab, lag, keyboard mapping and the Simulator.
Apple stopped making Safari for Windows in 2012. What still works from a PC: WebKit in Playwright, cloud testing services, and a real Mac for a day with Safari and the iOS Simulator.
Apple's iOS Simulator only runs on macOS, and so-called iOS emulators for Windows do not run your app. The real options: a phone, a browser simulator service, or a remote Mac.
iPhone Duo support arrived in Xcode 27.1, not 27.0. How to get the iPhone Duo simulator, run your tests on it, and take screenshots, with commands we ran on Xcode 27.1.
What needs a Mac and what does not for Flutter, React Native, Expo, Unity, Godot and .NET MAUI. The exact build and upload steps to run on the Mac.
Write Flutter on Windows or Linux, then build iOS on a rented Mac or a CI runner. The commands we ran with Flutter 3.47.7 and Xcode 26.6, and how to reach TestFlight.
Shared code and Android build on Windows or Linux, but the iOS framework and the Xcode app need macOS. Commands we ran on JetBrains' KMP template, and one trap.
Visual Studio on Windows still needs a Mac for MAUI iOS builds. The dotnet commands we ran on macOS, which Xcode each .NET 10 workload needs, and Pair to Mac.
Unity on Windows can write the iOS Xcode project but cannot compile it. How to copy the export to a Mac and archive it with xcodebuild, or use Unity Build Automation.
Godot 4.7 writes the iOS Xcode project on Windows or Linux in our test. Xcode on a Mac still builds, signs and uploads it. Tested commands and the errors we hit.
Capacitor 8 can add and sync the iOS project on Windows. Xcode still needs a Mac to build, run and sign it. A tested Windows to Mac workflow with real timings.
Apple's codesign, notarytool and stapler run only on macOS. How to build, sign and notarize an Electron or Tauri .dmg on a rented Mac, with tested commands.
Old Xcode, missing privacy manifest, usage strings, export compliance, screenshots: which App Store rejections need a rebuild, and the commands to rebuild today.
CS193p, 100 Days of SwiftUI and Apple's Develop in Swift all need Xcode. What works on an iPad, what needs a Mac, and how to rent one by the week.
There is no Xcode for iPad. When Swift Playground is enough, when you need real Xcode, and three ways to run it on a rented Mac from your iPad.