Prepare Flatpak
Install Flatpak from Ubuntu's package repository. Restart after setting it up for the first time.
sudo apt install flatpak
MCast Studio for LinuxYour studio.Your Linux.
Choose your distribution. Follow the steps. Start creating.
Intel & AMD · x86_64
Get started
Choose your distribution
The same MCast Studio release, with setup steps for your system.
Showing installation steps for Ubuntu.
Choose your distribution to prepare your computer. Virtual camera setup ↓
Set up app downloads
Add Flathub so MCast Studio can download what it needs. You can repeat this step if you already use Flathub.
flatpak remote-add --user --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepoInstall MCast Studio
Open a terminal in the folder where you saved the download, then run:
Review the requested permissions and let the installation finish. If you are updating, save your work and close MCast Studio first.
Advanced: verify the download
The normal installation command verifies the signature using the key included in the download. To check it against the release key published here, save this key beside the downloaded app.
Download signing keyCheck the key and compare the complete fingerprint:
If it matches, install with that key:
If verification fails, download both files again. Contact support if the problem continues.
Open your studio
Open MCast Studio from your applications menu, or run:
flatpak run com.mcaststudio.MCast//stableSign in through your browser, then return to the app. Allow camera, microphone, and screen-sharing access when prompted.
Optional setup
Use MCast as your camera
Send your MCast output to another app as a camera. This requires a camera component installed on your Linux system.
Camera setup availability will be shown with the latest release.
Your system installer may ask for your administrator password.
Older systems do not support this camera setup. These requirements apply only to the virtual camera.
System requirements
This component requires systemd, matching headers for the running kernel, and your distribution’s v4l2loopback driver and utilities version or newer. Older drivers do not support the required camera controls.
Advanced: verify camera components
Save the component package, its signature, and the signing key in the same folder.
Continue only if verification succeeds and the signing key matches the complete fingerprint:
Install the components
Open a terminal in the folder where you saved the download, then run:
When installation finishes, close and reopen MCast Studio, then start the virtual camera. Then refresh the camera selector in the receiving app and choose the MCast camera you started. A camera may not appear in that app until you start it in MCast Studio.
If Secure Boot needs key enrollment
Keep Secure Boot enabled. If your distribution requests a Machine Owner Key (MOK), follow its enrollment steps and restart. On the restart screen, review the requested key, choose Enroll MOK, and confirm using the password you set during installation.
If no enrollment prompt appeared, use your distribution's official instructions: Ubuntu Secure Boot or Debian DKMS and Secure Boot. The signing key is created by your system; its location differs between distributions. An administrator may need to help on a managed computer.
After enrollment and restart, finish the camera-component setup:
sudo dpkg --configure mcast-virtual-cameraReturn to MCast Studio and start the virtual camera again.
Other distributions need additional setup. Contact support before configuring it.
Good to know
A little help along the way.
The app is missing from my applications menu
Sign out of your Linux desktop and sign back in. You can use the launch command above in the meantime.
How do I update MCast Studio?
When MCast Studio offers an update, open the update page and choose the Linux download. Download the latest version, save your work and close MCast Studio, then follow the installation steps on this page. Your saved work is kept.
How do I uninstall it?
Use your software manager or run flatpak uninstall --user com.mcaststudio.MCast//stable. Your saved application data is kept.
My camera or screen is not available
Check your desktop's camera, microphone, and screen-sharing permissions. Keep your graphics drivers current. Contact support with your distribution and device if you need help.
More help: Flatpak user guide ↗