version: 1
id: terminal-neovim
title: Edit Faster with Neovim Basics
summary: Create a minimal Neovim config and use it to fix a broken service unit file from the terminal.
difficulty: beginner
estimatedMinutes: 25
prerequisites: [terminal-tmux]
image: alpine:3.21
shell: /bin/sh
setup:
  - "apk add --no-cache neovim >/dev/null"
  - "mkdir -p /workspace/.config/nvim /workspace/etc/systemd/system"
  - "printf '[Unit]\\nDescription=Broken API\\n[Service]\\nExecStart=/usr/bin/false\\n' > /workspace/etc/systemd/system/api.service"
tasks:
  - id: nvim-fix
    title: Configure Neovim and repair the unit
    description: 'Write /workspace/.config/nvim/init.lua enabling line numbers and ignoring case in search. Edit api.service so ExecStart is /usr/bin/true and Description is Platform API, then write /workspace/edit-proof.txt containing the ExecStart line.'
    hints:
      - 'init.lua can use vim.opt.number = true and vim.opt.ignorecase = true'
      - nvim can edit files non-interactively via +commands, or use sed after creating the config.
      - edit-proof.txt should contain ExecStart=/usr/bin/true
    checks:
      - type: file
        name: Line numbers enabled
        path: /workspace/.config/nvim/init.lua
        value: number
      - type: file
        name: Ignorecase enabled
        path: /workspace/.config/nvim/init.lua
        value: ignorecase
      - type: file
        name: Unit description fixed
        path: /workspace/etc/systemd/system/api.service
        value: Platform API
      - type: file
        name: ExecStart fixed
        path: /workspace/etc/systemd/system/api.service
        value: ExecStart=/usr/bin/true
      - type: file
        name: Edit proof saved
        path: /workspace/edit-proof.txt
        value: ExecStart=/usr/bin/true
limits: {cpus: "0.5", memory: 128m, pids: 64, timeout: 1800, network: false}