The download on brailleblaster.org is the proprietary version, so it
doesn't have or need a build system, but does need a late java runtime.
I didn't get it here, so am not fully aware of the contents of the
archive, but there should be either an install script or a way to run
the application using the java runtime that you can install from your
repository.
There is a newer open source version at
https://github.com/aphtech/brailleblaster
that can be built from source as per its README.md. Be advised though
that you would probably need many of the packages not available in Arch
that Didier mentions in order to build the source. This open source
version is also still under fairly early development, so may not work as
expected yet, even if you have all the components you need. I can see
that development is in fact active, so eventually most of the caveats
may go away in the fairly near future.
~Kyle
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