As my instructor puts it when I asked the same question to him about other devs using "var" instead of "let" or "const", "When in Rome, live like the Romans." Unfortunately, when you work with others, you have to adapt to how they run their code base especially early on as a junior dev(might be a different story when you are a senior).
However, when it comes to personal projects, I understand you are working with your brother, but unfortunately, you two would either need to agree on the technology to use and master it for the project or find other options for the project such as new partners aligned with your skills or working on the project yourself.
I will say that it is very cool that you have a brother that share the same interest as you! I came from a family that likes to farm and although I still enjoy it, I found my purpose outside of it vs my younger brother that couldn't tell you how to log "hello world". He is currently in college for agricultural management, so there are times we teach each other something new.
As my instructor puts it when I asked the same question to him about other devs using "var" instead of "let" or "const", "When in Rome, live like the Romans." Unfortunately, when you work with others, you have to adapt to how they run their code base especially early on as a junior dev(might be a different story when you are a senior).
However, when it comes to personal projects, I understand you are working with your brother, but unfortunately, you two would either need to agree on the technology to use and master it for the project or find other options for the project such as new partners aligned with your skills or working on the project yourself.
I will say that it is very cool that you have a brother that share the same interest as you! I came from a family that likes to farm and although I still enjoy it, I found my purpose outside of it vs my younger brother that couldn't tell you how to log "hello world". He is currently in college for agricultural management, so there are times we teach each other something new.
I'll keep that in mind.