Can't install the package

[Alyetama]

I tried installing the package on both MacOS (Apple M1) and Linux (Ubuntu), and I get the same issue on both. Please see below.

julia> import Pkg; Pkg.add("Py2Jl")^C

(@v1.4) pkg> add Py2Jl
ERROR: The following package names could not be resolved:
 * Py2Jl (not found in project, manifest or registry)

julia> import Pkg; Pkg.add("Py2Jl")
ERROR: The following package names could not be resolved:
 * Py2Jl (not found in project, manifest or registry)

Stacktrace:
 [1] pkgerror(::String) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.4/Pkg/src/Types.jl:53
 [2] ensure_resolved(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; registry::Bool) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.4/Pkg/src/Types.jl:802
 [3] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}; preserve::Pkg.Types.PreserveLevel, platform::Pkg.BinaryPlatforms.MacOS, kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.4/Pkg/src/API.jl:148
 [4] add(::Pkg.Types.Context, ::Array{Pkg.Types.PackageSpec,1}) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.4/Pkg/src/API.jl:112
 [5] #add#27 at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.4/Pkg/src/API.jl:109 [inlined]
 [6] add at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.4/Pkg/src/API.jl:109 [inlined]
 [7] #add#24 at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.4/Pkg/src/API.jl:107 [inlined]
 [8] add at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.4/Pkg/src/API.jl:107 [inlined]
 [9] add(::String; kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.4/Pkg/src/API.jl:106
 [10] add(::String) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.4/Pkg/src/API.jl:106
 [11] top-level scope at REPL[4]:1