Well, I would not recommand using grump or gulp for a project that must last 15 years. Well, in the first place, I would not recommand doing a web project that

Well, I would not recommand using grump or gulp for a project that must last 15 years. Well, in the first place, I would not recommand doing a web project that must still work in 15 years: the technology is changing every 6 month, and I would advise on a 6 / 7 years longevity max for any web application. If you do need (or your client needs) that kind of longevity, I would use only good ol' robust libraries included in the source code, such as jQuery or Backbone, and stay away from trendy stuff such as Angular or Rust.