Can't install nvidia-smi

Technical Help
7

I commented out lines 57 and 59 of /etc/apt/sources.list
56: ## Lambda Labs software repository
57: #deb http://archive.lambdalabs.com/ubuntu focal main
58: # deb-src http://archive.lambdalabs.com/ubuntu focal main
59: #deb Index of /compute/cuda/repos/ubuntu2004/x86_64>
60: # deb-src http://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x8>

and commented out line 1 of /etc/apt/sources.list.d/lambda-repository.list which now looks like this
1: #deb http://archive.lambdalabs.com/ubuntu focal main
2: # deb-src http://archive.lambdalabs.com/ubuntu focal main

Now the output looks like this:

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

Hit:1 Index of /ubuntu focal-security InRelease
Hit:2 Index of /repos/code/ stable InRelease
Hit:3 https://download.sublimetext.com apt/stable/ InRelease
Hit:4 Index of /ubuntu focal InRelease
Hit:5 Index of /ubuntu focal-updates InRelease
Hit:6 Index of /ubuntu focal-backports InRelease
Reading package lists…
Building dependency tree…
Reading state information…
21 packages can be upgraded. Run ‘apt list --upgradable’ to see them.

If I uncomment line 1 of /etc/apt/sources.list.d/lambda-repository.list which now looks like this
1: deb http://archive.lambdalabs.com/ubuntu focal main
2: # deb-src http://archive.lambdalabs.com/ubuntu focal main

The output looks like this:

Hit:1 Index of /repos/code/ stable InRelease
Get:2 http://archive.lambdalabs.com/ubuntu focal InRelease [3176 B]
Hit:3 https://download.sublimetext.com apt/stable/ InRelease
Get:4 http://archive.lambdalabs.com/ubuntu focal/main amd64 Packages [92.1 kB]
Hit:5 Index of /ubuntu focal-security InRelease
Get:6 http://archive.lambdalabs.com/ubuntu focal/main i386 Packages [30.8 kB]
Hit:7 Index of /ubuntu focal InRelease
Hit:8 Index of /ubuntu focal-updates InRelease
Hit:9 Index of /ubuntu focal-backports InRelease
Fetched 126 kB in 4s (35.0 kB/s)
Reading package lists… Done
Building dependency tree
Reading state information… Done
16 packages can be upgraded. Run ‘apt list --upgradable’ to see them.