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+# Contributing Guidelines
+
+It's great to see that you're taking the time to read this. Let's have some fun together! 
+
+By default, there are no restrictions on your imagination - feel free to do anything that you consider appropriate and are capable of doing. However, in the event that something negative occurs, we should make a note of it and document it in this file to prevent it from happening again. 
+
+If you're interested in setting up the CALM development environment, please refer to the [Hacking](hacking.md) section.
+
+## Making Changes
+
+- To ensure proper code management, please refrain from pushing commits directly to the main branch.
+- Instead, submit all changes through a pull request.
+- Please note that a pull request must receive approval from code owners before it can be merged.
+  As an counterexample, please check https://github.com/VitoVan/calm/pull/163.