As documented at https://dev.cancel.fm/wiki?name=OpenSSL+Linux+Issues, Ripcord does not start up on current Debian systems. 
Apparently, multiple users experienced this bug already.
I describe the symptoms in the following so that others can associate the symptoms with the root cause.
When starting the current AppImage on Debian (testing), a window appears but closes immediately. Terminal output is the following:

    raphael@home:~/Downloads$ ./Ripcord-0.4.26-x86_64.AppImage 
    qt.network.ssl: QSslSocket: cannot resolve SSL_set_alpn_protos
    qt.network.ssl: QSslSocket: cannot resolve SSL_CTX_set_alpn_select_cb
    qt.network.ssl: QSslSocket: cannot resolve SSL_get0_alpn_selected
    Auto configuration failed
    140072629958400:error:25066067:DSO support routines:DLFCN_LOAD:could not load the shared library:dso_dlfcn.c:185:filename(libssl_conf.so): libssl_conf.so: cannot open shared object file: No such file or directory
    140072629958400:error:25070067:DSO support routines:DSO_load:could not load the shared library:dso_lib.c:244:
    140072629958400:error:0E07506E:configuration file routines:MODULE_LOAD_DSO:error loading dso:conf_mod.c:285:module=ssl_conf, path=ssl_conf
    140072629958400:error:0E076071:configuration file routines:MODULE_RUN:unknown module name:conf_mod.c:222:module=ssl_conf
    QMutex: destroying locked mutex
    QObject::~QObject: Timers cannot be stopped from another thread

The workaround suggested by https://dev.cancel.fm/wiki?name=OpenSSL+Linux+Issues is to start the application with an environment variable set:

`OPENSSL_CONF="" ./Ripcord.AppImage `

It seems that the developer does not believe this to be an issue with the software but with the operating system. 
I would disagree. From the perspective of an end user, it is Ripcord that is not working. I would appreciate if Ripcord would automatically recover from a missing/problematic library instead of failing (almost) silently.
This is especially bad because for these users, the first - and probably only - experience is that Ripcord does not work at all. 

If the developer believes that it is not reasonably possible to fix this bug, I would strongly suggest improving documentation and error messages. 
A warning on the download page and/or an error message if startup fails would be very helpful.

Bug or missing documentation / AppImage does not start because of missing libssl_conf.so