This is a known issue. We rolled out a new package registry (only back-end). The front-end will be announced later. We support now only SemVer compatible packages. We will update our docs soon how anyone can publish own packages. Also, we will introduce soon owner-based dependency support. You will be able to declare in lib_deps this
[env:myenv]
lib_deps =
owner/libname
The current PIO Core version does not support this syntax yet. However, the new registry has this information and much more.
Also, this syntax is not valid
Please use FULL Github path. Otherwise, new PIO Core 4.4 will look for a library in a new registry owned by :owner/:libname.
P.S: Thanks for using PlatformIO!