feat: initialize repo with NixOS and Home Manager configs

- Add .gitignore for common languages, tools, and OS/editor artifacts
- Configure .gitattributes for Git LFS (fonts, images, archives, ISOs)
- Add README with repo description
- Add flake.nix defining inputs and outputs for NixOS, Home Manager, and related modules
- Introduce home-manager configs:
  - Base home.nix with packages, services, and programs
  - Hyprland WM configuration (waybar, fuzzel, keybindings, theming)
  - Vim (nixvim) setup with LSP and plugins
  - Zsh setup with aliases, Oh My Zsh, clipboard helpers
  - Systemd user services (e.g., librespot)
- Add scripts (GPU monitor, RAM build helper, install automation)
- Add host configurations:
  - Nixbook (Apple laptop) with hardware, disko, and install script
  - Nixstation (desktop) with firewall, virtualization, Btrfs scrub timer
  - Nixtest (test VM) with QEMU + Alpine-based install test harness
  - Common modules (network, NVIDIA, rclone, screen, keychron, users)
- Include statix config for linting

hosts/Nixtest/scripts/install_test.sh

@@ -0,0 +1,93 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+### Configuration ###
+
+# Find virtual images at: https://alpinelinux.org/downloads/ -> Virtual
+ALPINE_VERSION="3.19.1"
+ALPINE_ARCH="x86_64"
+ALPINE_IMAGE_FILENAME="alpine-virt-${ALPINE_VERSION}-${ALPINE_ARCH}.iso"
+ALPINE_IMAGE_URL="https://dl-cdn.alpinelinux.org/alpine/v$(echo $ALPINE_VERSION | cut -d. -f1-2)/releases/${ALPINE_ARCH}/${ALPINE_IMAGE_FILENAME}"
+
+QEMU_MEM="2048"
+QEMU_CPUS="2"
+QEMU_SSH_HOST_PORT="2222"
+QEMU_PID_FILE="qemu_test.pid"
+
+TARGET_IP="127.0.0.1"
+TARGET_PORT="${QEMU_SSH_HOST_PORT}"
+TARGET_USER="root"
+SSH_KEY_PUB="$HOME/.ssh/id_rsa.pub"
+SSH_KEY_PRIV="$HOME/.ssh/id_rsa"
+
+FLAKE_PATH="./#Nixtest"
+
+### Helper Functions ###
+cleanup_qemu() {
+  if [ -f "$QEMU_PID_FILE" ]; then
+    echo "🧹 Cleaning up previous QEMU instance..."
+    kill -- "-$(cat $QEMU_PID_FILE)" 2>/dev/null || kill "$(cat $QEMU_PID_FILE)" 2>/dev/null || true
+    rm -f "$QEMU_PID_FILE"
+    sleep 2
+    echo "🧹 Cleanup complete."
+  fi
+}
+
+launch_qemu_alpine() {
+  echo "🚀 Launching QEMU with Alpine Linux (${ALPINE_IMAGE_FILENAME})..."
+  qemu-system-x86_64 \
+    -m "${QEMU_MEM}" \
+    -smp "${QEMU_CPUS}" \
+    -enable-kvm \
+    -nic user,model=virtio-net-pci,hostfwd=tcp::${TARGET_PORT}-:22 \
+    -drive file="${ALPINE_IMAGE_FILENAME}",media=cdrom,readonly=on \
+    -boot d \
+    -display none \
+    -daemonize \
+    -pidfile "$QEMU_PID_FILE"
+
+  echo "⏳ Waiting for QEMU to boot and SSH to become available on port ${TARGET_PORT}..."
+  local max_wait=90
+  local waited=0
+  while ! ssh -p "${TARGET_PORT}" -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o ConnectTimeout=2 -o ConnectionAttempts=3 "${TARGET_USER}@${TARGET_IP}" exit >/dev/null 2>&1; do
+    sleep 3
+    waited=$((waited + 3))
+    if [ "$waited" -ge "$max_wait" ]; then
+      echo "❌ Timed out waiting for SSH on port ${TARGET_PORT}."
+      cat "$QEMU_PID_FILE"
+      cleanup_qemu
+      exit 1
+    fi
+    echo -n "."
+  done
+  echo
+  echo "✅ QEMU Alpine VM is up and SSH is ready on port ${TARGET_PORT}."
+}
+
+### Main Script ###
+
+trap cleanup_qemu EXIT SIGINT SIGTERM
+
+if [ ! -f "$ALPINE_IMAGE_FILENAME" ]; then
+  echo "⏬ Downloading Alpine image: ${ALPINE_IMAGE_FILENAME}..."
+  wget --progress=bar:force -O "$ALPINE_IMAGE_FILENAME" "$ALPINE_IMAGE_URL"
+else
+  echo "✅ Alpine image found locally: ${ALPINE_IMAGE_FILENAME}"
+fi
+
+if [ ! -f "$SSH_KEY_PUB" ] || [ ! -f "$SSH_KEY_PRIV" ]; then
+  echo "❌ SSH key not found at $SSH_KEY_PRIV or $SSH_KEY_PUB"
+  echo "   Please generate one using 'ssh-keygen' or specify the correct path."
+  exit 1
+fi
+echo "✅ Using SSH key: ${SSH_KEY_PRIV}"
+
+cleanup_qemu
+launch_qemu_alpine
+
+# --- Installation logic will go here ---
+
+echo "🏁 Test script placeholder finished. VM is running."
+echo "   PID: $(cat $QEMU_PID_FILE)"
+echo "   To connect: ssh -p ${TARGET_PORT} ${TARGET_USER}@${TARGET_IP}"