watchexec:tldr:634a0
The watchexec command is used to automatically run a script or command whenever certain files or directories change in a given directory.
In this specific command:
watchexec: This is the main command that invokes the watchexec tool.
--watch ${lib}: This option tells watchexec to monitor the ${lib} directory for any changes. ${lib} is likely a placeholder variable that represents a specific directory path.
--watch ${src}: This option tells watchexec to also monitor the ${src} directory for any changes. ${src} is again likely a placeholder representing another directory path.
${make}: This is the command that will be executed whenever a change is detected in either the ${lib} or ${src} directories. ${make} is likely another placeholder representing a specific build or compilation command.
So overall, this command will continuously monitor the ${lib} and ${src} directories and whenever a change occurs in either of them, it will execute the ${make} command.