Modifiers
Modifiers live within projects and are thus not shared between projects. Each modifier can be attached to any number of nodes within the project, affecting the node's behaviour or configuration. The same modifier (e.g. an environment variable) can thus be shared between multiple nodes, injecting the same environment variable into all nodes it is attached to. Modifiers do not execute any logic themselves, but rather act as an add-on to a node.
Environment Variables
Environment variables can be injected into individual actions or flows. Each variable can be public or secret, the latter of which is encrypted and cannot be displayed again after it is set.
Attaching an environment variable to a flow will expose the variable to all child nodes within that flow. It is therefore important to be cautious about attaching environment variables to flows.