diff --git a/doc/tutorial/part-one/basic-hive.md b/doc/tutorial/part-one/basic-hive.md
index 3da2f5b..6d978ee 100644
--- a/doc/tutorial/part-one/basic-hive.md
+++ b/doc/tutorial/part-one/basic-hive.md
@@ -33,11 +33,11 @@ Lets check out what wire sees with `wire show`.
 
 ```sh
 [nix-shell]$ wire show
- WARN wire: use --json to output something scripting suitable
-Hive {
-    nodes: {},
-    schema: 0,
-}
+ INFO eval_hive: evaluating hive HiveNix("/home/marsh/scratch/wire-tutorial/hive.nix")
+ WARN use --json to output something scripting suitable
+Summary: 0 total node(s), totalling 0 keys (0 distinct).
+Note: Listed connections are tried from Left to Right
+
 ```
 
 The line `nodes: {}` means theres no "nodes" in our hive.
@@ -56,7 +56,7 @@ in
 wire.makeHive {
   meta.nixpkgs = import sources.nixpkgs { };
 
-  virtual-machine = { # [!code ++]
+  virtual-machine = { pkgs, ... }: { # [!code ++]
     deployment.target = { # [!code ++]
         port = 2222; # [!code ++]
         hosts = [ "localhost" ]; # [!code ++]
@@ -132,7 +132,7 @@ in
 wire.makeHive {
   meta.nixpkgs = import sources.nixpkgs { };
 
-  virtual-machine = {
+  virtual-machine = { pkgs, ... }: {
     deployment.target = {
         port = 2222;
         hosts = [ "localhost" ];
diff --git a/doc/tutorial/part-one/repo-setup.md b/doc/tutorial/part-one/repo-setup.md
index 995443e..c9e1824 100644
--- a/doc/tutorial/part-one/repo-setup.md
+++ b/doc/tutorial/part-one/repo-setup.md
@@ -27,14 +27,22 @@ Great! Now lets use Git & `npins` to create a new Git repo and initialise it.
 [nix-shell]$ git init wire-tutorial
 Initialized empty Git repository in /home/.../wire-tutorial/.git/
 [nix-shell]$ cd wire-tutorial/
-[nix-shell]$ npins init
+[nix-shell]$ npins init --bare
 [INFO ] Welcome to npins!
 [INFO ] Creating `npins` directory
 [INFO ] Writing default.nix
-[INFO ] Writing initial lock file with nixpkgs entry (need to fetch latest commit first)
+[INFO ] Writing initial lock file (empty)
 [INFO ] Successfully written initial files to 'npins/sources.json'.
+[nix-shell]$ npins add github pkpbynum nixpkgs --branch pb/disk-size-bootloader
 ```
 
+::: details
+
+This tutorial is using a [PR](https://github.com/NixOS/nixpkgs/pull/449945) that
+fixes virutal machine bootloader disk sizes.
+
+:::
+
 This has created a pinned version of `nixpkgs` for us to use in our Wire hive.
 
 ## Adding wire as a dependency
@@ -58,10 +66,13 @@ project:
 
 ```sh
 [nix-shell]$ npins show
-nixpkgs: (Nix channel)
-    name: nixpkgs-unstable
-    url: https://releases.nixos.org/nixpkgs/nixpkgs-25.11pre861972.88cef159e47c/nixexprs.tar.xz
-    hash: 0zscvr0qa3capyzhmp798hgncz2qy8ggm843y10wk35jk7p0174f
+nixpkgs: (git repository)
+    repository: https://github.com/pkpbynum/nixpkgs.git
+    branch: pb/disk-size-bootloader
+    submodules: false
+    revision: da2060bdc1c9bc35acc4eafa265ba6b6c64f9926
+    url: https://github.com/pkpbynum/nixpkgs/archive/da2060bdc1c9bc35acc4eafa265ba6b6c64f9926.tar.gz
+    hash: 0j07gvnm7c5mzw1313asa8limzbmsbnsd02dcw22ing8fg3vbb7g
     frozen: false
 
 wire: (git release tag)
diff --git a/doc/tutorial/part-one/vm-setup.md b/doc/tutorial/part-one/vm-setup.md
index 9b0587d..8ebd975 100644
--- a/doc/tutorial/part-one/vm-setup.md
+++ b/doc/tutorial/part-one/vm-setup.md
@@ -41,10 +41,14 @@ in
     getty.autologinUser = "root";
   };
 
+  boot.growPartition = true;
+
   virtualisation = {
     graphics = false;
     useBootLoader = true;
 
+    diskSize = 5 * 1024;
+
     # forward `openssh` port 22 to localhost:2222.
     forwardPorts = [
       {