As of the date of this FAQ, the osDXP Project is meeting to ratify the 1.0 Draft of osDXP Modules guidelines, as seen below. For an up-to the date version of current guidelines, the project is maintaining living documents on GitHub that will be helpful when determining if each module will be a fit.

osDXP Modules (Plugin) guidelines

• Adhere to all WordPress Plugin Directory Guidelines & GPL Compliant Codebase
• Plugins should register only one settings page, available as a subpage of Module Settings
• PHP 7.4 min. Version required
• Detailed docblocks need to be present throughout your codebase
• Valid codebase
  • Plugins must validate against an established ruleset for PHP and meet ES6 standards for JavaScript, passing linting tests against these rules.
  • The preferred PHPCS ruleset is a custom one made up of PSR12 and some necessary checks for WordPress security, sanitization, and prevention of deprecated code.
  • Javascript should validate against ES6, at a minimum.
• No SaaS-ification of Client Data (because enterprises need to be in control of their data)
• No Customer Data is saved on Vendors System (SaaS)
• Clear data privacy standards
• Accessibility declaration
• Object Oriented/Class Based PHP
• Follow osDXP UX Standards
• No "AdWare" (promotional popups, admin notices, or other text taking up screen space)