Well, if you are long enough in the industry, in retrospective, most of the code, frameworks and platform you have worked on are now considered "legacy", given

Well, if you are long enough in the industry, in retrospective, most of the code, frameworks and platform you have worked on are now considered "legacy", given the dynamic fast pace of our environments. Data-centers -> Cloud Monolith -> API and Services Databases.... Memcache -> Redis JS/JQuery -> MVP Framework Git. and not to forget K8S. and this is just the tip of the iceberg.