Building a Custom Checklist App for Your Home Flight Simulator with Directus

Home flight simulators have become incredibly sophisticated, but managing checklists manually can still interrupt the flow of a session. While you could build a basic checklist app with a simple database, using a headless CMS like Directus gives you a powerful, flexible backend that’s easy to update and extend. This guide walks you through creating a custom checklist app tailored to your simulator setup, with Directus handling the data layer.

Why Use Directus for Checklist Management?

Directus provides a user-friendly interface for non-developers to edit checklist data, while offering a robust API for developers. Key benefits include:

  • Headless flexibility: Use any frontend – web app, Electron desktop app, or even a mobile companion.
  • Self-hosted or cloud: Keep your data private on your home server or use Directus Cloud.
  • Role-based permissions: Control who can edit checklists (helpful if multiple people use the simulator).
  • Relational data: Link checklists to aircraft types, phases of flight, or hardware profiles.
  • Real-time updates: With Directus Realtime, changes sync instantly across devices.

Prerequisites

Before building, ensure you have:

  • A running Directus instance (local Docker setup or Directus Cloud).
  • Basic knowledge of JavaScript and your chosen frontend framework (e.g., React, Vue, or vanilla JS).
  • Node.js installed if you plan to use the Directus JavaScript SDK.
  • Simulator hardware or software that can trigger checklist actions (optional).

Step 1: Design the Directus Data Model

In your Directus admin panel, create collections that reflect your checklist structure. Suggested schema:

Collection: aircraft

  • id (Primary key)
  • name (String) – e.g., “Cessna 172”
  • image (Image) – optional thumbnail
  • description (Text)

Collection: checklists

  • id
  • title (String) – e.g., “Pre-Start Checklist”
  • phase (String) – e.g., “Startup”, “Taxi”, “Climb”, “Approach”
  • aircraft (Many-to-One to aircraft)
  • order (Integer) – sequence within phase

Collection: checklist_items

  • id
  • checklist (Many-to-One to checklists)
  • item_text (String) – e.g., “Set throttle to idle”
  • is_optional (Boolean) – for items that can be skipped
  • order (Integer)

After creating collections, populate them with your own checklist data using the Directus interface or import a CSV.

Step 2: Set Up the Directus API

Directus automatically generates REST and GraphQL endpoints for your collections. For a checklist app, you’ll likely want to fetch all checklists for a specific aircraft and their items. Example REST URL:

GET /items/checklists?filter[aircraft][id]=1&fields=*,items.*

To simplify API calls in your frontend, install the Directus JavaScript SDK:

npm install @directus/sdk

Create an API client instance:

import { createDirectus, rest } from '@directus/sdk';
const client = createDirectus('http://localhost:8055').with(rest());
export default client;

Step 3: Build the Frontend Checklist App

You can build a lightweight web app using any framework. Below are key features to implement:

Display Aircraft Selection

Fetch aircraft from Directus and show them as cards. When a user selects one, load its checklists.

Show Checklist Groups

Group checklists by phase (e.g., Preflight, Engine Start, Before Taxi). Use an accordion or tabbed interface.

Interactive Checklist Items

Each item should have a checkbox. As the user ticks items, the app can visually progress. Add a “complete” state that persists even after page reload – you can store progress locally or update a Directus collection if needed.

Search and Filter

Add a search box to filter items by text, useful during VFR navigation or emergency drills.

Integration with Simulator Hardware

If you have simulator software that outputs events (e.g., via SimConnect for MSFS or X-Plane’s UDP), you can listen for changes and automatically check off items. For example, when the master battery switch is turned on, the app marks that item done.

Use web sockets or polling to keep the checklist in sync with physical switches and knobs.

Step 4: Deploy and Access the App

Host your frontend on a lightweight server (or use Directus’ built-in app extension). For maximum convenience, serve it from the same machine that runs the simulator. Options:

  • Static site served via NGINX or Caddy.
  • Node.js app hosted on port 3000.
  • Electron app that launches on startup and communicates with Directus locally.

Make sure your Directus instance is accessible (either on localhost or over your home network). You can protect it with a simple API token or use Directus’ authentication.

Step 5: Advanced Features to Consider

Take your checklist app further with these enhancements:

Voice Commands

Use the Web Speech API to read checklist items aloud and accept voice confirmations.

Timer and Alerts

Add a stopwatch for timed items like “Engine warm-up” or “Holding pattern timing.” Directus can store timer defaults per checklist.

Customizable Themes

Allow users to change fonts, colors, or background images – useful for matching cockpit aesthetics.

Collaborative Checklists

If you fly with a virtual co-pilot (e.g., Pilotedge or VATSIM), use Directus Realtime to share checklist progress across multiple devices.

Logbook Integration

After each flight, log which checklists were completed. Store this in a separate Directus collection for review.

Optimizing for Performance and Reliability

A checklist app must never crash mid-flight. Follow these best practices:

  • Cache checklist data locally using IndexedDB or localStorage so the app works offline.
  • Queue any writes to Directus and retry on failure.
  • Use environment variables for API URLs and tokens – never hardcode.
  • Keep Directus instance lightweight; disable unused modules.

Learning More About Directus

To master Directus for your checklist app and other projects, check out the official Directus documentation. For community discussions on flight sim development, the Microsoft Flight Simulator forums and X-Plane.org forums are excellent resources.

Conclusion

Building a custom checklist app for your home flight simulator with Directus combines the power of a professional headless CMS with the flexibility of your own frontend. You get a centralized, easy-to-manage database for all your checklists, while also learning practical skills in API-driven development. Start with a simple prototype, then iterate based on your flying needs. Whether you fly a GA Cessna or an airliner in VR, a custom checklist app will make your sessions more immersive and efficient. Happy flying and coding!