Open-source alternative to create interactive courses like Duolingo.
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About this project

Interactive learning is more effective than traditional methods. Learners remember 10% of what they hear, 20% of what they read but 80% of what they see and do. That's why 34 hours of Duolingo are equivalent to a full university semester of language education.

We love Duolingo. We think those kind of interactive experiences should be used in more fields. That's why we're building UneeBee, an open-source platform to create interactive courses like Duolingo. You can use it at your organization, school, or using our marketplace to share your experience in a fun way.

Tech stack

• Phoenix
• Phoenix LiveView
• Postgres
• Tailwind CSS
• Resend
• Cloudflare Images

We're deploying our cloud products to Fly and Neon.

Getting started

Follow the instructions below to get UneeBee up and running on your local machine. We have a Dockerfile but that's used for deploying our demo app to Fly. We don't have a Docker setup for local development yet. PRs are welcome!

Requirements

• You need Elixir 1.15 or later and Erlang 26 or later. Run elixir -v to find your current version for Elixir and Erlang.
• Install Hex: mix local.hex.
• Install Phoenix: mix archive.install hex phx_new.
• PostgreSQL 15+.
• (Linux users only): inotify-tools.

Local development

• Run mix setup to install both dependencies and set up both the database and assets.
• Run mix seed to fetch some initial data to the database (See options).
• Run mix phx.server to start a development server.
• Run mix test to run tests.
• Run mix ci to run our code quality checks.
• Run mix locale to update translation files.

SSL on localhost

Prefer to do local development using SSL to resemble production as much as possible. You can use mkcert to generate a certificate. After you install mkcert, follow the steps below:

• Create a cert directory under priv: mkdir priv/cert.

• Generate a new certificate: mkcert -key-file priv/cert/selfsigned_key.pem -cert-file priv/cert/selfsigned.pem localhost uneebee.test "*.uneebee.test" apple.test.

• Run mkcert -install to install the certificate in the system trust store.

• You may also need to enable Allow invalid certificates for resources loaded from localhost on Google Chrome flags.

• Restart your local server: mix phx.server. You may also need to restart your browser.

  You also need to make sure your machine maps localhost to a test domain (we're using uneebee.test for this guide). dnsmasq allows you to resolve domains to your local machine without having to change your /etc/hosts file. To install dnsmasq:

brew install dnsmasq

# Create a configuration directory
mkdir -pv $(brew --prefix)/etc/

# Set up your domains
echo 'address=/uneebee.test/127.0.0.1' >> $(brew --prefix)/etc/dnsmasq.conf
echo 'address=/.uneebee.test/127.0.0.1' >> $(brew --prefix)/etc/dnsmasq.conf
echo 'address=/apple.test/127.0.0.1' >> $(brew --prefix)/etc/dnsmasq.conf

# Add dnsmasq to your resolver
sudo mkdir -v /etc/resolver
sudo bash -c 'echo "nameserver 127.0.0.1" > /etc/resolver/uneebee.test'
sudo bash -c 'echo "nameserver 127.0.0.1" > /etc/resolver/apple.test'

# Start dnsmasq
sudo brew services start dnsmasq

That's it! You can now start your local server (mix phx.server) and test your domains using:

• https://uneebee.test:4001
• https://rug.uneebee.test:4001 (each school slug can be used as a subdomain of uneebee.test).
• Or any other domain you added before.

Mailer

We're using Resend to send emails. To make it work in production, you need to set the following environment variables on your server:

• RESEND_API_KEY: Your Resend API key.

Storage

By default, we upload files to your local server and store them in the priv/static/uploads directory. However, we also support uploading files to Cloudflare Images. To use Cloudflare Images, you'll need to set the following environment variables on your server:

• CLOUDFLARE_ACCOUNT_ID: Your Cloudflare account ID. You can find it on Cloudflare Dashboard > Images > Overview.
• CLOUDFLARE_ACCOUNT_HASH: Your Cloudflare account hash. You can find it on Cloudflare Dashboard > Images > Overview.
• CLOUDFLARE_API_TOKEN: Your Cloudflare API token. You can create a token on Cloudflare Dashboard > My Profile > API Tokens.

Stripe

We use Stripe for processing payments. If you want to enable subscriptions, you need to set the following environment variables on your server:

• STRIPE_API_KEY: Your Stripe API key.
• STRIPE_WEBHOOK_SECRET: Your Stripe webhook secret.

Plus, you need to create a product for your subscription. We call this plan flexible and you can't customize plans at the moment. We fetch the price from the Stripe API, so make sure you add the uneebee_flexible lookup key to your price.

Stripe can only be enabled for saas and marketplace apps. Make sure to choose one of those options when you first run this app.

Sponsors

• @adriy-be
• Add your name or brand here by sponsoring our project.