FYI...
Thanks to Chet Fennell, KG4IYS, installation packages for WSJT-X 2.5.3 on Debian-based (Debian, Ubuntu 20.04 LTS, ...) and Fedora-based (Fedora 34, RedHat, ...) flavors of Linux have been posted on the WSJT-X web page:
https://physics.princeton.edu//pulsar/k1jt/wsjtx.html
Versions installable with "apt-get" and "yum" will be made available when our package maintainers create the packages.
Note: these packages are unlikely to install properly on Linux distributions with required dependencies at lower versions than those on the named distributions. In such cases building from source is the correct way to install WSJT-X.
Many thanks to Chet Fennell, KG4IYS, for building the .deb and .rpm packages. We also thank Dave Slotter, W3DJS, for comparable parallel effort.
For those who like to build their own, we hope to have the standard WSJT-X tarball (source code and other required resources) available soon.
-- 73 from Joe, K1JT; Steve, K9AN; and Nico, IV3NWV