Devhelp is a developer tool for browsing and searching API documentation.
It provides an easy way to navigate through libraries and to search by function, struct, or macro.
The documentation must be installed locally, so an internet connection is not needed to use Devhelp.
Devhelp works natively with GTK-Doc, so the GTK+ and GNOME libraries are well supported. But other development platforms can be supported as well, as long as the API documentation is available in HTML and a *.devhelp2 index file is generated (see the README file for more information).
Or with command line: $ flatpak install --from https://flathub.org/repo/appstream/org.gnome.Devhelp.flatpakref
Unstable nightly version:
Or with command line: $ flatpak install --from https://git.gnome.org/browse/gnome-apps-nightly/plain/devhelp.flatpakref
Getting in Touch
JDevhelp - Make Javadocs browsable using Devhelp