Try putting this fragment somewhere in the body of config\dev.exs:
…
config :tailwind,
cacerts_path: System.get_env("HEX_CACERTS_PATH")
config :esbuild,
cacerts_path: System.get_env("HEX_CACERTS_PATH")
that should harmonize it with any override you may have already configured for Hex, while not baking a bunch of device-specific paths into the ultimate compiled executable (do your coworkers have the exact same username, with the certificate file saved into the exact same place?)
set "HEX_CACERTS_PATH=%ONEDRIVE%\fake_root.pem"
mix deps.get
mix ecto.create
iex -S mix phx.server
