>Unfamiliar... for whom? For the web developers who want to re-use their existing frontend skills of Javascript+HTML+CSS to create cross-platform desktop execu

>Unfamiliar... for whom? For the web developers who want to re-use their existing frontend skills of Javascript+HTML+CSS to create cross-platform desktop executables ... instead of learning a different GUI toolkit such as C++ QT, or C# Winforms WPF, or Java SwingGUI, Pascal Delphi, etc. The op's links of Electron alternatives based on Qt do offer re-use of Javascript skills but I guess that's not enough of a compelling value proposition to gain mindshare.