Learning new tech is good of course but I wouldn't overdo it. It is also important to have some specialization and skills that you focus on. It also depends on

Learning new tech is good of course but I wouldn't overdo it. It is also important to have some specialization and skills that you focus on. It also depends on your clients, they will most likely be making the call based on the tech they already are using in their current stack and their tech employees. So when they bring in a consultant they will want to keep in line with their in-house tech stack not to complicate future maintenance and hiring.