Installing
First-time install notes
The installers are not signed by Apple or Microsoft -- that needs paid developer accounts, which we're holding off on until sales justify the cost -- so your system may ask for an extra confirmation.
Installing on Android
Android apps are provided as APK files. Open the downloaded file. If Android asks, allow your browser or Files app to install unknown apps (the setting is usually under Settings, Apps, Special access, Install unknown apps, and the wording varies by device). Android may also show a Play Protect notice for apps that do not come from Google Play; choose to install anyway if you downloaded the file from this site. Google Play listings are planned.
Installing on a Chromebook
Two ways, both using the downloads above: sideload the Android APK if your Chromebook supports Android apps, or install the Linux .deb with sudo apt install ./file.deb if it has Linux (Crostini) turned on. See Can I use VCM on a Chromebook? in Support and FAQ for the full steps -- neither path has been tried on real Chromebook hardware yet.
Installing on macOS
Open the downloaded .dmg and drag the app into Applications. The first time you open it, macOS may say the app is damaged or cannot be opened. That only means the app is not notarized by Apple -- notarizing needs a paid Apple Developer account, which we're holding off on until sales justify the cost. Double-click the fix_app_permissions.command file included in the same .dmg once, then open the app normally from Applications.
Installing on Windows and Linux
On Windows, run the downloaded .exe, or double-click the .msi. On Linux, install the .deb, for example with sudo apt install ./file.deb. If your system shows a security prompt for an unsigned installer, that's expected -- Windows code-signing needs a paid certificate, which we're holding off on until sales justify the cost.