None of these in my ~/.bashrc work: export TRUSTED_PKG_PATH=https://bruno%3AMyPassword%40gnuser.ddns.net/openbsd-bruno/6.4/packages/amd64
export TRUSTED_PKG_PATH='https://bruno%3AMyPassword%40gnuser.ddns.net/openbsd-bruno/6.4/packages/amd64' export TRUSTED_PKG_PATH='https://bruno:[email protected]/openbsd-bruno/6.4/packages/amd64' Running the above as commands in a terminal emulator as regular user also doesn't work. But this works: $ su Password: # export TRUSTED_PKG_PATH=https://bruno:[email protected]/openbsd-bruno/6.4/packages/amd64 # pkg_add myscripts myscripts-1.0: ok So TRUSTED_PKG_PATH must be exported (I should have figured, sorry) but, counterintuitively, regular user can set PKG_PATH but only root can set TRUSTED_PKG_PATH. If that's by design, I guess it's not a bug but it should probably be mentioned in the pkg_add(1) man page.
