Linux Distro with longest repo availability

Linux
1

I am looking for the Linux Distro with longest repo availability.

As an example I still have a server running Fedora 7.
yum update still gives me the repos and yum works with absolutely no trouble.
I think it is now 16 years and yum still installs packages etc.

This is crucial for my application.
FC7 still chugs along running unportable legacy software. What a blessing. !
MX for example just dies in say 4 years, with the repo links going dead.

So anyone know of the Linux distro with the longest repo support ?
I am not sure if FC still has this cycle as IBM bought RedHat.
Is there another distro with similar long repo availability ?

I am not interested in life cycle, just the availability of the repos.

This https://endoflife.date/citrix-vad e.g. is useless to me as Fedora 7 e.g. gave me 15-16 years of uninterrupted repo access, although the life cycle is marked as way shorter.

2

Use Rocky Linux Rocky Linux | endoflife.date and run legacy app using Linux container such as Docker or LXD or VM. That is the best way to do it.

3

Most legacy apps are numerical solvers, so they must run natively else floating point performance hit under a virtual machine or similar makes them unusable.

So the legacy concern is not really part of the question, as all I wanted was the distro with the longest time till EOL and especially online repo availability.
As I mentioned FC7 repos remained online for 15 years and counting now. However IBM doesnt state the policy on life of their online repos as redhat did.

So in summary: Longest life of availability of repos obviously after EOL and not EOL date itself.

EOL is not so serious, the point is that I dont want to end up in a bind if I have to reinstall the OS at a much later date. Therefore long life on online repositories are what I am after. RedHat was spectacular regarding this.
CD/DVD repositories just dont work right and is usually corrupt. You never have the latest.