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Shipping .NET 10 for macOS 12+ and .NET 8 for macOS 11 Big Sur in one Avalonia app (LiveClaude v2.2.8)

A developer released LiveClaude v2.2.8, an MIT-licensed C#/Avalonia app that turns Claude Code Remote Control and Cursor My Machines terminal sessions into OS-supervised services via systemd, LaunchAgent and ConPTY/pty with a C# VT emulator. To keep .NET 10 as the default while still supporting macOS 11 Big Sur, the project added a parallel .NET 8 build path driven by a BaseTargetFramework property, with the macOS CI job producing separate .NET 10 and .NET 8 DMGs and the updater selecting the matching build via OperatingSystem.IsMacOSVersionAtLeast(12).

by read1 min views2 publishedNov 14, 2026
If you use **Claude Code Remote Control** or **Cursor My Machines** from your phone, there is one brittle point in the workflow: both run as foreground processes inside a terminal. Close the window, hit a crash, or reboot — and your remote client loses the machine.

I built **[LiveClaude](https://github.com/LeandroCannizzaro/LiveClaude)** (MIT, C# / Avalonia) to turn those sessions into OS-supervised services:

systemd (Linux), LaunchAgent (macOS)ConPTY on Windows and pty on Linux/macOS with a C# VT emulator for one-time trust and login flows

👉 **User Manual & Downloads:** [https://leandrocannizzaro.github.io/LiveClaude/](https://leandrocannizzaro.github.io/LiveClaude/)

👉 **GitHub Repository (MIT):** [https://github.com/LeandroCannizzaro/LiveClaude](https://github.com/LeandroCannizzaro/LiveClaude)

When shipping LiveClaude v2.2.x, we hit an interesting cross-platform constraint: .NET 10 Mach-O binaries (apphost and runtime .dylib s) are built by Microsoft with LC_BUILD_VERSION minos 12.0. Even if you lower LSMinimumSystemVersion to 11.0 in Info.plist, macOS 11 Big Sur still refuses to launch a .NET 10 app.

We didn't want to downgrade Windows, Linux, or macOS 12+ from .NET 10 just to support Big Sur. Instead, in v2.2.7–v2.2.8, we kept .NET 10 as the default everywhere and added a parallel .NET 8 build path specifically for macOS 11:

Directory.Build.props:<BaseTargetFramework> defaults to net10.0, while all cross-platform .csproj files target $(BaseTargetFramework). The macOS CI job builds twice: once with .dmg) and once with -p:BaseTargetFramework=net8.0 (-macos11.dmg). v2.2.8): xattr -cr), signing the full .app bundle with codesign --force --deep --sign -, verifying with --strict, and forcing -fs HFS+ in hdiutil create so macOS 11 mounts and opens the DMG cleanly.navigator.userAgentData.getHighEntropyValues(['architecture', 'platformVersion']) (with a User-Agent fallback) to highlight Updates.cs checks OperatingSystem.IsMacOSVersionAtLeast(12) and pulls the matching update.json. winget install LeandroCannizzaro.LiveClaude .deb / .rpm / one-liner):curl -fsSL https://leandrocannizzaro.github.io/LiveClaude/install.sh | sh curl -fsSL https://leandrocannizzaro.github.io/LiveClaude/install-macos.sh | sh

Full User Manual & release notes: [https://leandrocannizzaro.github.io/LiveClaude/](https://leandrocannizzaro.github.io/LiveClaude/)

Source & issues: [https://github.com/LeandroCannizzaro/LiveClaude](https://github.com/LeandroCannizzaro/LiveClaude)

(I'm the author of LiveClaude — feedback, PRs, and stars are welcome.)

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