diff --git a/docs/server-installer-usb.md b/docs/server-installer-usb.md
index b668d71..1382c46 100644
--- a/docs/server-installer-usb.md
+++ b/docs/server-installer-usb.md
@@ -81,27 +81,29 @@ If you skip this, use Ethernet on the live system or the graphical NixOS install
 
 1. Boot the server from the USB.
 2. If you did not bake WiFi into the ISO, attach Ethernet or (on graphical installer) join Wi‑Fi so the machine has network.
-3. Clone this repo (or copy the install script onto the machine). For example:
+3. Run **one** of the following (shortest first).
+
+**Shortest — fetch and run (no clone step):**  
+Exact URL (watch for typos: **.com** not .con, **usb** not ush, **DannyDannyDanny** with three capital Ds):
 
 ```bash
-nix run --extra-experimental-features "nix-command flakes" nixpkgs#git -- clone https://github.com/USER/dotfiles.git /tmp/dotfiles
-cd /tmp/dotfiles
+curl -sL https://raw.githubusercontent.com/DannyDannyDanny/dotfiles/server-installer-usb/scripts/bootstrap-install.sh | sudo bash
 ```
 
-4. Run the install script (it will prompt for hostname and target disk):
+If you see `bash: 404: command not found`, the URL was wrong or the branch doesn’t exist. Check the URL, or verify first: `curl -sL "THE_URL_ABOVE" | head -1` should show `#!/bin/bash`, not HTML.
+
+To type less, create a [git.io](https://git.io) short link once (paste the raw URL above), then on the machine run: `curl -sL https://git.io/YOUR_CODE | sudo bash`.
+
+**Alternative — clone then run** (if you prefer not to pipe curl to bash):
 
 ```bash
-sudo ./scripts/nixos-server-install.sh
+nix run --extra-experimental-features "nix-command flakes" nixpkgs#git -- clone https://github.com/USER/REPO.git /tmp/dotfiles && cd /tmp/dotfiles && git checkout server-installer-usb && sudo ./scripts/nixos-server-install.sh
 ```
 
-The script uses the flake from the current repo by default (`path:$(pwd)/nixos`). To use the flake from GitHub instead:
+If you see `command not found` when running the script, use `sudo bash ./scripts/nixos-server-install.sh` instead of `sudo ./scripts/...`.
 
-```bash
-sudo FLAKE_REF=github:USER/dotfiles ./scripts/nixos-server-install.sh
-```
-
-5. When disko creates the LUKS volume, enter the encryption passphrase when prompted.
-6. When the script finishes, remove the USB and reboot. The new NixOS system will have LUKS root and the hostname you chose.
+4. When prompted: enter **hostname** (e.g. `phantom-ship`), then **target disk** (default `/dev/sda`), then **y** to proceed. When disko creates the LUKS volume, enter your encryption passphrase.
+5. When the script finishes, remove the USB and reboot. The new NixOS system will have LUKS root and the hostname you chose.
 
 ## WiFi on the installed system (optional)
 
@@ -155,6 +157,6 @@ Adjust the flake path and `--system-config` (e.g. add WiFi) as needed.
 | **From Linux** | Option B: `nix build .#installer-iso` in `nixos/`, then write `result/iso/*.iso` to USB. |
 | Optional live WiFi | (Custom ISO only) Add `installer-wifi.nix` (gitignored), include in flake, rebuild on Linux. |
 | Boot | Boot server from USB |
-| Install | Clone repo, run `sudo ./scripts/nixos-server-install.sh` (set `FLAKE_REF` if not from repo) |
+| Install | On live system: `curl -sL https://raw.githubusercontent.com/.../server-installer-usb/scripts/bootstrap-install.sh | sudo bash` (or clone then `sudo ./scripts/nixos-server-install.sh`) |
 | Optional installed WiFi | Set `INSTALLER_SYSTEM_CONFIG_FILE` to a JSON file with wireless config |
 | Reboot | Remove USB, reboot; set root password if needed, add SSH keys |
diff --git a/nixos/hosts/server-install.nix b/nixos/hosts/server-install.nix
index 070e96c..7e319d3 100644
--- a/nixos/hosts/server-install.nix
+++ b/nixos/hosts/server-install.nix
@@ -8,7 +8,7 @@
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
-  networking.hostName = "nixos";  # Override with --system-config at install
+  networking.hostName = lib.mkDefault "nixos";  # Overridden by --system-config at install
   networking.wireless.enable = true;
   # networks."SSID".psk set via --system-config or imperative.conf after boot
 
diff --git a/scripts/bootstrap-install.sh b/scripts/bootstrap-install.sh
new file mode 100755
index 0000000..43a2201
--- /dev/null
+++ b/scripts/bootstrap-install.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+# Fetch with curl and run to install NixOS (clone + run nixos-server-install.sh).
+# On the live system, run only:
+#   curl -sL https://raw.githubusercontent.com/DannyDannyDanny/dotfiles/server-installer-usb/scripts/bootstrap-install.sh | sudo bash
+#
+# Optional: REPO_URL=... BRANCH=... (default repo and server-installer-usb)
+set -euo pipefail
+
+REPO_URL="${REPO_URL:-https://github.com/DannyDannyDanny/dotfiles.git}"
+BRANCH="${BRANCH:-server-installer-usb}"
+DEST="/tmp/dotfiles"
+INSTALL_SCRIPT="$DEST/scripts/nixos-server-install.sh"
+
+if [[ ! -f "$INSTALL_SCRIPT" ]]; then
+  echo "Cloning $REPO_URL ($BRANCH) to $DEST..."
+  nix run --extra-experimental-features "nix-command flakes" nixpkgs#git -- clone --branch "$BRANCH" "$REPO_URL" "$DEST"
+fi
+
+cd "$DEST"
+[[ "$EUID" -ne 0 ]] && exec sudo bash "$INSTALL_SCRIPT"
+exec bash "$INSTALL_SCRIPT"
diff --git a/scripts/nixos-server-install.sh b/scripts/nixos-server-install.sh
index 5d5eb5b..5665edc 100644
--- a/scripts/nixos-server-install.sh
+++ b/scripts/nixos-server-install.sh
@@ -1,13 +1,13 @@
-#!/usr/bin/env bash
+#!/bin/bash
 # Run on a NixOS minimal live system (or installer ISO) to install NixOS with
 # disko (LUKS + root). Prompts for hostname and target disk; optionally use
 # INSTALLER_SYSTEM_CONFIG_FILE for WiFi etc.
 #
-# Usage:
-#   Export FLAKE_REF (e.g. github:User/dotfiles or path:/path/to/dotfiles/nixos).
-#   Or run from repo root and use: FLAKE_REF=path:$(pwd)/nixos
+# Usage (from repo root, e.g. /tmp/dotfiles):
 #   sudo ./scripts/nixos-server-install.sh
-#   # or: sudo FLAKE_REF=github:User/dotfiles ./scripts/nixos-server-install.sh
+# If you see "command not found", use: sudo bash ./scripts/nixos-server-install.sh
+#
+# Optional: FLAKE_REF=github:User/dotfiles or path:/path/to/dotfiles/nixos
 #
 # Optional: INSTALLER_SYSTEM_CONFIG_FILE=/path/to/json with full --system-config
 # (e.g. hostName + networking.wireless.networks). If unset, only hostname is passed.
@@ -65,7 +65,8 @@ if [[ "${confirm,,}" != "y" && "${confirm,,}" != "yes" ]]; then
   exit 0
 fi
 
-exec nix run github:nix-community/disko/latest#disko-install -- \
+exec nix run --extra-experimental-features "nix-command flakes" \
+  github:nix-community/disko/latest#disko-install -- \
   --flake "${FLAKE_REF}#server-install" \
   --disk main "$disk" \
   --system-config "$SYSTEM_CONFIG"