update readme.md

README.md

@@ -41,14 +41,14 @@ Old Intel Nuc that I got from @LeBogoo. Running a few personal services.
 #### Disk layout
 ```
 NAME      MOUNTPOINT  COMMENT
+tmpfs        /           # root on tmpfn
 sda
 ├─sda1    /boot
 ├─sda2    [SWAP]
 └─sda3                # btrfs
-  ├─root  /
   ├─lib   /var/lib
   ├─log   /var/log
-  └─store /nix/store
+  └─nix   /nix
 ```
 
 ### falkenstein-1

hosts/iso/default.nix

@@ -1,4 +1,4 @@
-{ config, modulesPath, ... }:
+{ pkgs, config, modulesPath, ... }:
 {
   imports = [
     "${modulesPath}/installer/cd-dvd/installation-cd-minimal.nix"
@@ -10,6 +10,9 @@
     keyMap = "dvorak";
   };
   programs.git.enable = true;
+  environment.systemPackages = with pkgs; [
+    helix
+  ];
 
   # in case we need to rescue a zfs machine
   boot.kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;