docs(developer/setup/docker): refine

docs/developer/setup/docker.md

@@ -33,10 +33,13 @@ Funkwhale can be run in Docker containers for local development. You can work on
    ::::
 
 6. Activate the pre-commit hook:
+
    ```sh
    pre-commit install
    ```
+
 7. Finally, initialise the environment:
+
    ```sh
    cp .env.example .env
    ```
@@ -50,16 +53,18 @@ Funkwhale provides a `compose.yml` file following the default file naming conven
 To set up your Docker environment:
 
 1. Create a network for federation support via the web proxy:
+
    ```sh
    docker network create web
    ```
+
 2. Then build the application containers. Run this command any time there are upstream changes or dependency changes to ensure you're up-to-date.
 
    ```sh
    docker compose build
    ```
 
-## Set up auxiliary services
+## Set up network services
 
 To support ActivityPub in the local development environment, we use a
 combination of auxiliary services that provide DNS-based discovery, local email delivery and web/TLS termination. This also has the benefit that we can talk to
@@ -85,9 +90,11 @@ The services bind to the following ports on the default Docker bridge network:
 1. Create a wildcard certificate for the Common Name (CN) `funkwhale.test` and
    the Subject Alternative Name (SAN) `*.funkwhale.test` which will be
    installed into your system and browser trust stores with:
+
    ```sh
    mkcert -install -cert-file compose/var/test.crt -key-file compose/var/test.key "funkwhale.test" "*.funkwhale.test"
    ```
+
    It will be used by Træefik to secure connections, which is needed for
    ActivityPub to work locally.
 
@@ -317,9 +324,9 @@ Set up as many different projects as you need. Make sure the
 `COMPOSE_PROJECT_NAME` and `VUE_PORT` variables are unique per instance.
 
 ```sh
-export COMPOSE_PROJECT_NAME=node2
+export COMPOSE_PROJECT_NAME=node1
 # VUE_PORT this has to be unique for each instance
-export VUE_PORT=1234
+export VUE_PORT=8081
 docker compose run --rm api funkwhale-manage fw users create --superuser
 docker compose up -d
 ```
@@ -332,23 +339,29 @@ You can access your project at `https://{COMPOSE_PROJECT_NAME}.funkwhale.test`.
 You may as well address the different Compose projects by using ad hoc
 environment variables:
 
-```
-COMPOSE_PROJECT_NAME=node1 VUE_PORT=1234 docker compose run --rm api funkwhale-manage fw users create --superuser
-COMPOSE_PROJECT_NAME=node1 VUE_PORT=1234 docker compose up -d
+```sh
+COMPOSE_PROJECT_NAME=node1 VUE_PORT=8081 docker compose run --rm api funkwhale-manage fw users create --superuser
+COMPOSE_PROJECT_NAME=node1 VUE_PORT=8081 docker compose up -d
 ```
 
 The `node1` instance will be available at [https://node1.funkwhale.test](https://node1.funkwhale.test).
 
-```
-COMPOSE_PROJECT_NAME=node2 VUE_PORT=1235 docker compose run --rm api funkwhale-manage fw users create --superuser
-COMPOSE_PROJECT_NAME=node2 VUE_PORT=1235 docker compose up -d
+```sh
+COMPOSE_PROJECT_NAME=node2 VUE_PORT=8082 docker compose run --rm api funkwhale-manage fw users create --superuser
+COMPOSE_PROJECT_NAME=node2 VUE_PORT=8082 docker compose up -d
 ```
 
 The `node2` instance will be available at [https://node2.funkwhale.test](https://node2.funkwhale.test).
 
-Proceed freely with different sets of values for `COMPOSE_PROJECT_NAME` and
+Proceed freely with different sets of non-overlapping values for `COMPOSE_PROJECT_NAME` and
 `VUE_PORT`.
 
+As a rule of thumb, remember to:
+
+- Prepend `COMPOSE_PROJECT_NAME=node1 VUE_PORT=8081` to the lifecycle commands `up` and `run` to execute containers of additional instances.
+- Prepend `COMPOSE_PROJECT_NAME=node1` to any other `docker compose` command to work with the indicated instance.
+
+By example, this mechanic also applies to the [set up of local data for development](#set-up-local-data-for-development) above.
 :::
 
 ::::{tab-set}
@@ -422,7 +435,11 @@ Fallback ports are available for the documentation at
 [http://localhost:8002/](http://localhost:8002/) and for the UI component library at [http://localhost:8003/](http://localhost:8003/).
 
 Maintain their life cycle with similar commands to those used to
-[set up auxiliary services (point 2.)](#set-up-auxiliary-services).
+[set up network services (point 2.)](#set-up-network-services).
+
+The documentation is then accessible at <https://docs.funkwhale.test>. The OpenAPI schema is available at <https://openapi.funkwhale.test>. The UI component library will be served at <https://ui.funkwhale.test>.
+
+Fallback ports are available for the documentation at <http://localhost:8001/>, for the OpenAPI schema at <http://localhost:8002/> and for the UI component library at <http://localhost:8003/>.
 
 ## Running the test suites