Apparently you can [0]. However, it seems (in my first reading) to be something I'd avoid because it sounds like the "natural" way to code in Julia is to assume 1-based and you're likely to run into issues with libraries if you try and do anything else.

[0] https://docs.julialang.org/en/v1/devdocs/offset-arrays/

Julia is all about generic programming. There is a ton of support for offset arrays and people almost always try to support that style.