Terje,
I will rename it README_appimage.txt which is what I should have done in the first place but it was new and I did not know how it would all work out. Below is what it will now say and if it looks OK to you, I will put it on the website tomorrow. Note that I left out any mention of cin.svg because now with AppImage, the source is no longer downloaded to the user and they would have to get it from the website src/cin...tgz file. You lose some capabilities with the AppImage, but the users who have been around awhile can find ways or do their own builds.
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AppImage is a software package that can be installed and run on various Linux
distros. It has several advantages in that there is no need to install or
compile software and no need to have root permission. In addition, no system
files are modified and you can simply delete the software by deleting the
AppImage file.
To install an AppImage, download it, make it executable and run it. It is a
compressed image and contains all the dependencies/libraries needed to run.
1) download AppImage file move from Download folder to your preference
2) make it executable chmod u+x {AppImageFile name}
3) run it, for example ./CinGG-date-x86_64.AppImpage
ARCH requires install of the "libappimage" package.
LEAP 15.3 (openSUSE) requires install of the "appimage" package.
***** Alternative GUI method to download provided by Leap 15.3 user *****
To run and integrate Cinelerra AppImage with installed "AppImageLauncher",
follow the next few steps. On openSUSE Leap 15.3 (and hopefully somewhat
similar on other distros) AppImageLauncher is integrated with Firefox.
1) Start to download the AppImage file, and a widget popups in Firefox
with the option to open it with AppImageLauncher (instead of Saving).
2) At the end of the download a new popup asks to integrate it with
your desktop system, so click OK. The AppImage installation directory
is /home/user/Application by default, but can be changed.
This automatically is integrated with icons and in the Gnome app-menu.