Design notes

Developer notes on feature specifications and code design.

• Add new configuration option
• Add new module sub-command
• Advanced module version specifiers
• Conflict unload
• Control mode behaviors
• Default and latest version specifiers
• Evaluation errors
• Extended default
• Extra match search
• Hide or forbid modulefile
• Initial environment
• Insensitive case
• lint sub-command
• Lmod Tcl modulefile compatibility
• Module magic cookie check
• mod-to-sh sub-command
• Module cache
• Module selection contexts
• Module tags
• --modulepath option
• Output configuration
• Shell completion
• Source shell script in modulefile
• Stashing environment
• Sticky modules
• Variants