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docs/DEV.md

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+# Dev
+
+To develop Chevereto we implement this workflow:
+
+* Create dev image
+* Start containers
+* Run filesystem watcher
+
+## Create dev image
+
+Dev image is required once and for every change on `Dockerfile`. It is an image without the actual application files (source code).
+
+Run the following command to create the dev image.
+
+```sh
+make image-custom TARGET=dev PHP=8.2
+```
+
+## Start containers
+
+Run the following command to run docker compose on the Chevereto containers.
+
+```sh
+make up-d NAMESPACE=dev
+```
+
+## Run filesystem watcher
+
+Run the following command to live update changes (made on local) to the running containers.
+
+```sh
+make run SCRIPT=observe NAMESPACE=dev SOURCE=~/git/chevereto/v4
+```