The unreasonable effectiveness of VMs in hacker pedagogy.
Here’s a secret. If you have Vagrant and VirtualBox installed, and your colleague does too, then you can both bring up an near-totally identical blank slate Debian 12 Linux VM by running
1 2 3 4 5 6 mkdir tutorial/ cd tutorial/ vagrant init debian/bookworm64 vagrant up vagrant ssh . This works regardless of whether you or they are on Linux, Mac, BSD, or even Windows. (Through the magic of aliasing, mkdir and cd even work in PowerShell.
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