Create a module for Magento 2 that adds a comment field in checkout via extension attributes

We would like to create a module for magento 2 that adds a comment field in checkout via extension attributes. We need a configuration option for - the title of the field - to enable / disable - to limit the length of the comment The module will create a textbox in the checkout form before the terms and conditions area and should be compatible with most popular OneStepCheckout plugins. The comment should be - visible in the backend order edit page - visible in order confirmation emails - accessible as a variable in order confirmation emails - additionally accessible via a helper function getOrderComment($orderId) The important thing here is to use a scalar extension attribute for the field as per magento 2 guidelines I will provide Vendor namespace and module name e.g. Vendor_ModuleName Required Compatibility: Magento 2.3.x Magento 2.4.x Workflow The module will be created on your local environment on a clean Magento 2.4.2 We integrate on our staging site and report bugs Bug fixing Project Completion Code Coherence: We're very strict when it comes to coding practices. Your code must be Open Source, Readable and not Bloated containing only the necessary parts for the functionality. Make sure to cleanup debug code. We use Magento 2 coding standards. Always prefer plugins over observers. Unless you discuss it with us never do the following: Do not do overrides with preferences in [login to view URL] Do not use deprecated classes unless you can't do otherwise. Failure to follow best practices will make us request multiple changes which is time consuming for you and us and will mean bad feedback. Ideal Candidate: I'm not going into bidding wars or changed prices. You initial bid is the final bid because the specifications are very very clear. I'm awarding the project directly, if you have any clarifications needed, request them prior. Please send a real project time and bid. Any other form of bid will make me report you to freelancer for wasting our time. Be able to prove experience in Magento 2.