quickstart development setup guide

documentation/DevTLDR.md

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+# Local Development Quick Setup
+- Install Python, Node, Git, Heroku
+
+## Front End
+- Clone the repo using\
+`git clone https://github.com/tinkertanker/LMS_Frontend.git` 
+
+- Install `yarn` (NOT the cmdtest version). If you see the below message, you have the wrong `yarn`\
+`00h00m00s 0/0: : ERROR: There are no scenarios; must have at least one.`
+
+- Include the following lines in `.env.local`.
+```
+NEXT_PUBLIC_BACKEND_HTTP_BASE=http://127.0.0.1:8000/
+NEXT_PUBLIC_BACKEND_WS_BASE=ws://127.0.0.1:8000/
+NEXT_PUBLIC_ALLOWED_HTS=<heroku-app-url>,localhost,127.0.0.1
+```
+
+- Run `yarn` and then `yarn dev`. The app should be running at `localhost:3000`. 
+
+## Back End
+- Clone the repo using\
+`git clone https://github.com/tinkertanker/LMS_Backend.git`
+
+- In the backend repository, run `pip3 install requirements` to install the required dependencies. 
+
+- Edit the config file (can reference values from env.docker)
+
+- Then, run `python3 manage.py runserver`. You can view the Django admin panel at `localhost:8000/admin`, with a superuser account (can be created using `python3 manage.py createsuperuser`)
+
+## Back End (with Docker)
+- Install Docker
+- Next, set up an `env.docker` file - you can use the `env.docker.sample` and insert the corresponding values there (or just clone it).
+- Navigate to the folder in a terminal, then execute the following commands:
+```
+docker compose up
+
+# after it comes up, and in a separate window
+docker ps
+
+# look for the CONTAINER ID that corresponds to lms_backend-django
+
+# suppose the CONTAINER ID is e1e3075d13f7
+docker exec -it e1e3075d13f7 sh
+
+# and when you're in, run the django migrations
+python manage.py migrate
+
+# also create a user so you can login to django
+python manage.py createsuperuser
+```
+- In all subsequent runs, just run the command `docker compose up`
+
+