I used Otter as a second browser for some time, but, despite all my empathy from the project, a few years ago I stopped.
- Installing and upgrading was a pain on Linux, and compiling was even worse. At first there were no AppImage for it. Then they were created but at first they were half-broken (the whole process of creating an AppImage is hacky and Qt projects were especially hard). It seems the AppImage broke again in 2018.
- The web engine comes from Qt. IIRC, it's an old fork of webkit. Many sites were not compatible, and I suspect the situation goes worse with every year.
I recommend trying Otter, but don't expect it to replace your everyday browser.
Browsing the source code, I love the author's habit to make a code commit every single day [0]. That looks like a powerful way to move the project forward while avoiding fatigue.
