There is no one definitive answer to this question – it depends on the individual and their specific skillset. However, if you are a developer, there is a good chance that you would benefit from having a blog.
A blog can provide you with an opportunity to share your work and experiences with others, as well as to learn from others and grow as an expert in your field. Additionally, a blog can help you build a loyal following of followers who appreciate your work and who may be interested in hearing about new projects or updates.
Ultimately, whether or not you should have a blog depends on your own personal goals and desires. However, if you are interested in building a strong presence in your field and attracting potential clients or collaborators, having a blog would be an excellent way to do that.