Hi Ron,
https://download.opensuse.org/repositories/network:/osmocom:/nitb-split:/nig... Redirection from https to 'http://ftp.gwdg.de/pub/opensuse/repositories/network:/osmocom:/nitb-split:/n...' is forbidden E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
TLDR: use http:// instead of https://download.opensuse.. in your sources.list
apt is telling you, https -> http redirection are ugly. The reason for this is: You've written https://download.opensuse.org in your source.list file, but download.opensuse.org tries to redirect you to an http:// mirror. Downloading packages from a http:// mirror isn't a big problem, because the packages are signed by GPG, so the integrety guaranteed.
Best, lynxis