> Is it practical to mirror critical software elsewhere?
To answer this specifically, yes I think it is very simple and practical if you are familiar with hosting any kind of web server. Mine just use git on a sysdtemd timer to recurse through directories I initialize and my cgit server hosts the web version. You just need a few MB of disk space, git, and a webserver to accomplish this.
A little git mirror tutorial
On a linux device you can run the following to initialize a repo in a mirror
```
mkdir
cd mkdir
git clone --mirror
```
Note: specifying --mirror is important because it creates a bare repo that can be updated by git with a single command later.
You can run this script in the top level directory and it will recursively sync all of your --mirror repos. It will find all the directories that end in .git which is what happens when using the --bare or --mirror option during a clone.
```
#! /bin/sh
set -x
for DIR in $(find . -type d -name "*.git"); do
echo "Updating repo $DIR"
pushd "$DIR"
git remote update --prune # fails with or without this line
popd
done
```
If you a running a distro that uses systemd you can configure a systemd timer to run the sync script on a schedule to keep your repo synced with the upstream repo
Here is a tutorial I like, it's very hand-holding
https://documentation.suse.com/smart/systems-management/html/systemd-working-with-timers/index.html
Otherwise you can use cron assuming your distro has that option. I prefer systemd timers though :)
Finally, you can serve this directory using apache, nginx or whatever flavor http server you want.
