[Feature Request] Support to Flutter-Tizen, Flutter-TVOS and future custom SDK

[deandreamatias]

Is your feature request related to a problem? Please describe.
Should be useful had a way to use FVM to manage different popular "forks" that supported other platforms. For now, flutter-tizen and flutter-tvos, but maybe LG SDK in the near future.

Describe the solution you'd like
Similar how handle Flutter SDK versions, handle the versions of other SDK.

Describe alternatives you've considered
A new parameter on .fvmrc

{
  "flutter": "stable"
  "flutter-tizen": "stable"
}

Additional context
Add any other context or screenshots about the feature request here.

[leoafarias]

Thanks for the feature request! Good news — FVM already supports this via the fork system introduced in v4.0.0. You can manage flutter-tizen, flutter-tvos, or any other custom Flutter fork today:

# Register the fork once
fvm fork add flutter-tizen https://github.com/flutter-tizen/flutter-tizen.git

# Install a version from that fork
fvm install flutter-tizen/stable
fvm install flutter-tizen/2.10.0

# Pin it in your project
fvm use flutter-tizen/stable

In your .fvmrc it will look like:

{
  "flutter": "flutter-tizen/stable"
}

You can also have multiple forks registered and switch between them with fvm fork list / fvm fork remove.

See the fork documentation for the full guide.

If you run into any issues with a specific fork (e.g., version detection showing 0.0.0-unknown — see related #1009), please let us know and we can track that as a separate bug.

---

Generated by Claude Code

[deandreamatias]

Awesome!
I will test it and comeback with some examples. Thanks!

[deandreamatias]

Doesn't works with flutter-tizen.
I followed all commands but this didn't work properly. I think that is because tizen use the command flutter-tizen instead flutter directly.

Details

matias@Mac flutter_tv_android % fvm use flutter-tizen/3.44.1-tizen.1.0.0    
┌────────────────────────────────────────────────────────────────────────────────────────────────┐
│ ⚠ Flutter SDK version: 3.44.1-tizen.1.0.0 isn't executable, indicating the cache is corrupted. │
└────────────────────────────────────────────────────────────────────────────────────────────────┘
Auto-fixing corrupted cache by reinstalling...
The corrupted SDK version is now being removed and a reinstallation will follow...
Flutter SDK: SDK Version : flutter-tizen/3.44.1-tizen.1.0.0 is not installed.
Installing Flutter SDK automatically...
Using forked repository URL: https://github.com/flutter-tizen/flutter-tizen.git
✓ Flutter SDK: SDK Version : flutter-tizen/3.44.1-tizen.1.0.0 installed! (10.7s)
Setting up Flutter SDK: 3.44.1-tizen.1.0.0

Flutter 3.44.1 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 924134a44c (3 weeks ago) • 2026-05-29 12:13:22 -0400
Engine • hash 39b1f7043775b9578bbb26a1676e79c4e31c8b5e (revision c416acfeb8) (25 days ago) • 2026-05-27 20:19:31.000Z
Tools • Dart 3.12.1 • DevTools 2.57.0

✓ Flutter SDK: SDK Version : flutter-tizen/3.44.1-tizen.1.0.0 is setup
[WARN] Flutter SDK is not setup, skipping resolve dependencies.
✓ Updated VSCode folder Flutter SDK path setting.
✓ Project now uses Flutter SDK : SDK Version : flutter-tizen/3.44.1-tizen.1.0.0
┌────────────────────────────────────────────────────────────────────┐
│ ✓ Running on VsCode, please restart the terminal to apply changes. │
└────────────────────────────────────────────────────────────────────┘
You can then use "flutter" command within the VsCode terminal.