I’m not sure it ever meant anything specific. I understand the term to loosely mean “can write code for front end and back end,” meaning both client-side (HTML,

I’m not sure it ever meant anything specific. I understand the term to loosely mean “can write code for front end and back end,” meaning both client-side (HTML, CSS, Javascript) and server-side (PHP, Javascript, Python, Ruby, etc. plus SQL). It may or may not include infrastructure, system admin, or “devops.” I’ve met people who call themselves full stack who seem lacking in parts of the stack — cannot navigate the Linux command line, can’t write SQL, etc. Like so many apparently descriptive labels in the software/tech industry the term “full stack” got applied to so many collections of skills at various degrees of ability to lose any useful meaning. See also “senior” and “engineer” and “architect.”