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ProtonUp-Qt
Install and manage GE-Proton, Luxtorpeda & more for Steam and Wine-GE & more for Lutris with this graphical user interface.
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
I know it's not official but the Heroic Games Launcher works pretty well for playing EGS games on linux.
I use protonup-qt to load the latest ge verson into heroic. Works well with most games I tried like Borderlands 3 but I haven't been able to load some games. Most recently I tried bioshock which just wouldn't load for me no matter what version of proton I tried.