Linux build ships outdated libreadline.so.8 incompatible with system /bin/sh (missing rl_trim_arg_from_keyseq)

[v-evets]

Attempting to do anything that invokes /bin/sh (i.e. launch xterm / steamcmd) produces a vague and completely useless error message in the UI (Some mods were not downloaded, blah, blah), rather than spawning an xterm window. Digging further into terminal output reveals:
/bin/sh: symbol lookup error: /bin/sh: undefined symbol: rl_trim_arg_from_keyseq

Why the hell is rimpy shipping its own copy of libreadline? The same goes for the other metric shitload of bundled libraries bloating the rimpy distribution size and causing compatibility problems, such as:
kde-open5: symbol lookup error: /usr/lib64/libQt5Xml.so.5: undefined symbol: _ZN9QXmlUtils6isCharEDi, version Qt_5_PRIVATE_API
which breaks "open mod URL in browser" and anything else that tries to call external tools linked against QT5.

Please either learn how to properly package applicatrions for GNU/Linux (and keep said packaging up to date), or release source code so we can compile rimpy properly against system libraries. The current situation is ridiculous.