start set up for multi-location nixos flake

nixos/hosts/olympus/bastion/configuration.nix

@@ -0,0 +1,68 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ pkgs, ... }:
+let
+  fix-vscode = pkgs.writeScriptBin "fix-vscode" ''
+    #!${pkgs.stdenv.shell}
+    # Check if vscode-server dir exists
+    if [[ -d "$HOME/.vscode-server/bin" ]]; then
+      # For every bin folder within
+      for versiondir in "$HOME"/.vscode-server/bin/*; do
+        # Remove bundled node (dynamic links are borked for nix)
+        rm "$versiondir/node"
+        # symlink node form the nixpkg
+        ln -s "${pkgs.nodejs-16_x}/bin/node" "$versiondir/node"
+      done
+    fi
+  '';
+in {
+  imports = [
+    # Include the results of the hardware scan.
+    ./hardware-configuration.nix
+  ];
+
+  # Use the GRUB 2 boot loader.
+  boot.loader.grub.enable = true;
+  boot.loader.grub.version = 2;
+  boot.loader.grub.device = "/dev/sda";
+
+  networking.hostName = "bastion";
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "21.05"; # Did you read the comment?
+
+  virtualisation.podman = {
+    enable = true;
+  };
+
+  # Additional packages
+  environment.systemPackages = with pkgs; [
+    binutils
+    fix-vscode
+    fluxcd
+    k9s
+    kubectl
+    kubectx
+    nix-prefetch-git
+    nixpkgs-fmt
+    nixpkgs-review
+    ripgrep
+    rnix-lsp
+    rsync
+    tmux
+    vault
+    vim
+  ];
+
+  programs.gnupg.agent = {
+    enable = true;
+    pinentryFlavor = "curses";
+  };
+}