test: nixified ci times

[kayagokalp]

testing ci times

[sdankel]

From the docs: https://github.com/cachix/install-nix-action#how-do-i-add-a-binary-cache

Suggested change

	extra_nix_config: |
	extra-substituters = https://fuellabs.cachix.org
	extra-trusted-public-keys = fuellabs.cachix.org-1:3gOmll82VDbT7EggylzOVJ6dr0jgPVU/KMN6+Kf8qx8=
	extra_nix_config: |
	substituters = https://fuellabs.cachix.org
	trusted-public-keys = fuellabs.cachix.org-1:3gOmll82VDbT7EggylzOVJ6dr0jgPVU/KMN6+Kf8qx8=

[kayagokalp]

lets try that!

[kayagokalp]

Hmm from this docs, it looks like providing extra_ prefix to nix config tells nix to append the given public key and substituters, rather than overriding already existing ones. In this case we overriden nixos cache and made the process slower i guess. (Since we had packages found from nixos cache rather than ours but with this change we only find the packages in our cache and re-build other ones). The default substituters is https://cache.nixos.org

[Voxelot]

do we need to enable experimental features here?

[kayagokalp]

I think the action has the flake experimental feature enabled by default, so I believe we should be good with the default settings (last bullet point in the linked section):

https://github.com/cachix/install-nix-action#features

[Voxelot]

Yeah I wasn't sure if that was being overridden due to this logic:

https://github.com/cachix/install-nix-action/blob/16b951426ed4927ca0d26d32e8f5a10638579ec8/install-nix.sh#L31

[Voxelot]

It might make sense to the github cache action to preserve /nix/store/**? Depending on the speed of the cache, it may be faster than puling from cachix.

This issue is related:
cachix/install-nix-action#165

[kayagokalp]

It might make sense to the github cache action to preserve /nix/store/**? Depending on the speed of the cache, it may be faster than puling from cachix.

This issue is related: cachix/install-nix-action#165

That sounds good! Let's try that, trying to put together something like that.