etc: support experimental official Nix installer

doc/known-files/4e8f7cb9b699511f4ba5f9d5f8de1c9f5efb5c607de88faf5f58b8b9cb38edbf

@@ -0,0 +1,7 @@
+
+# Set up Nix only on SSH connections
+# See: https://github.com/DeterminateSystems/nix-installer/pull/714
+if [ -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh' ] && [ -n "${SSH_CONNECTION:-}" ] && [ "${SHLVL:-0}" -eq 1 ]; then
+    . '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
+fi
+# End Nix

doc/known-files/71f7fdc9f6c9e55ca0f2e6f85137037d660b3224a34d59305e8530ca292bc734

@@ -0,0 +1,3 @@
+# Written by https://github.com/NixOS/nix-installer
+# The contents below are based on options specified at installation time.
+

doc/known-files/74ee0ae5ad21a1b101617685fd3d001f74a9466d9d763d92eb75b99cc740db91

@@ -0,0 +1,10 @@
+# Generated by https://github.com/NixOS/nix-installer
+# See `/nix/nix-installer --version` for the version details.
+
+extra-experimental-features = nix-command flakes
+always-allow-substitutes = true
+bash-prompt-prefix = (nix:$name)\040
+max-jobs = auto
+extra-nix-path = nixpkgs=flake:nixpkgs
+
+!include nix.custom.conf

modules/nix/default.nix

@@ -757,6 +757,7 @@ in
       "6bb8d6b0dd16b44ee793a9b8382dac76c926e4c16ffb8ddd2bb4884d1ca3f811"  # DeterminateSystems Nix installer 0.34.0
       "24797ac05542ff8b52910efc77870faa5f9e3275097227ea4e50c430a5f72916"  # lix-installer 0.17.1 with flakes
       "b027b5cad320b5b8123d9d0db9f815c3f3921596c26dc3c471457098e4d3cc40"  # lix-installer 0.17.1 without flakes
+      "74ee0ae5ad21a1b101617685fd3d001f74a9466d9d763d92eb75b99cc740db91"  # experimental official Nix installer 2.33.3
     ];
 
     environment.etc."nix/registry.json".text = builtins.toJSON {
@@ -881,10 +882,12 @@ in
     # to express that we want it deleted and know only one hash?
     system.activationScripts.checks.text = mkAfter ''
       nixCustomConfKnownSha256Hashes=(
-        # v0.33.0
+        # DetSys v0.33.0
         6787fade1cf934f82db554e78e1fc788705c2c5257fddf9b59bdd963ca6fec63
-        # v0.34.0
+        # DetSys v0.34.0
         3bd68ef979a42070a44f8d82c205cfd8e8cca425d91253ec2c10a88179bb34aa
+        # Nix 2.33.3
+        71f7fdc9f6c9e55ca0f2e6f85137037d660b3224a34d59305e8530ca292bc734
       )
       if [[ -e /etc/nix/nix.custom.conf ]]; then
         nixCustomConfSha256Output=$(shasum -a 256 /etc/nix/nix.custom.conf)

modules/programs/zsh/default.nix

@@ -260,6 +260,7 @@ in
 
     environment.etc."zshenv".knownSha256Hashes = [
       "d07015be6875f134976fce84c6c7a77b512079c1c5f9594dfa65c70b7968b65f"  # DeterminateSystems installer
+      "4e8f7cb9b699511f4ba5f9d5f8de1c9f5efb5c607de88faf5f58b8b9cb38edbf"  # experimental official Nix installer 2.33.3
     ];
 
   };