Replaced Docker with Podman, deprecated MacOS environment

DEVELOPMENT.md

@@ -1,21 +1,21 @@
 # Development Guide
 
-## Docker local development setup
+## Podman local development setup
 
-You should have docker installed in your system, if not click [here](https://docs.docker.com/get-docker/).
+You should have podman installed in your system, if not click [here](https://podman.io/).
 
 1. Go to diagrams root directory.
 
 2. Build the docker image.
 
     ```shell
-    docker build --tag diagrams:1.0 -f ./docker/dev/Dockerfile .
+    podman build --tag diagrams:1.0 -f ./docker/dev/Dockerfile .
     ```
 
 3. Create the container, run in background and mount the project source code.
 
     ```shell
-    docker run -d \
+    podman run -d \
     -it \
     --name diagrams \
     --mount type=bind,source="$(pwd)",target=/usr/src/diagrams \
@@ -25,53 +25,13 @@ You should have docker installed in your system, if not click [here](https://doc
 4. Run unit tests in the host using the container to confirm that it's working.
 
     ```shell
-    docker exec diagrams python -m unittest tests/*.py -v
+    podman exec diagrams python -m unittest tests/*.py -v
     ```
 
 5. Run the bash script `autogen.sh` to test.
 
     ```shell
-    docker exec diagrams ./autogen.sh
+    podman exec diagrams ./autogen.sh
     ```
 
 6. If the unit tests and the bash script `autogen.sh` is working correctly, then your system is now ready for development.
-
-
-## Mac local development setup
-
-To be able to develop and run diagrams locally on you Mac device, you should have [Python](https://www.python.org/downloads/), [Go](https://golang.org/doc/install) and [brew](https://brew.sh/) installed on your system.
-
-1. Go to diagrams root directory.
-
-2. Install poetry, the Python project management packge used by diagrams.
-
-    ```shell
-    pip install poetry
-    ```
-
-3. Install the project's Python dependencies.
-
-    ```shell
-    poetry install
-    ```
-
-4. Install diagrams binary dependencies.
-
-    ```shell
-    brew install imagemagick inkscape black
-    go get github.com/mingrammer/round
-    ```
-
-5. Run unit tests to confirm that it's working.
-
-    ```shell
-    python -m unittest tests/*.py -v
-    ```
-
-6. Run the bash script `autogen.sh` to test.
-
-    ```shell
-    ./autogen.sh
-    ```
-
-7. If the unit tests and the bash script `autogen.sh` is working correctly, then your system is now ready for development.