Trouble with gmtread (gdalinfo failed)

I’m trying to get acquainted with the GMT.jl package, and I’m following the wonderful tutorial here: Plot Landsat 8 images

Unfortunately, the very first step fails!

julia> Ir = gmtread("/vsicurl/");
ERROR: gdalinfo failed - unable to open /vsicurl/
 [1] error(s::String)
   @ Base ./error.jl:35
 [2] guess_T_from_ext(fname::String)
   @ GMT ~/.julia/packages/GMT/oJOu7/src/gmtreadwrite.jl:324
 [3] gmtread(_fname::String; kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
   @ GMT ~/.julia/packages/GMT/oJOu7/src/gmtreadwrite.jl:131
 [4] gmtread(_fname::String)
   @ GMT ~/.julia/packages/GMT/oJOu7/src/gmtreadwrite.jl:68
 [5] top-level scope
   @ REPL[5]:1

Can someone help me interpret this error message?

Sorry for this. Those examples worked when the tutorial was written but now apparently the L8 images are no longer available at that amazon place (that’s what the ERROR: gdalinfo failed - unable to open means).

There are more stuff like that at the RemoteS.jl package but the examples use local files in my disk so examples are not reproducible. It’s hard to make reproducible examples when the data files are big like the ones in question.