nvim: read-only on ~/.config/firejail and file contents empty

[rieje]

I'm trying to use Neovim sandboxed but it's not reading the contents of ~/.config/firejail--I see that the directory is read-only but when I open an existing file it's empty. I grep'd /etc/firejail but don't see anything that's making this directory read-only.

The only modification is the following in nvim.local on the latest version:

ignore blacklist ${RUNUSER}

noblacklist ${HOME}/.config
noblacklist ${HOME}/.config/firejail

ignore read-only ${HOME}/.config
ignore read-only ${HOME}/bin

Output of firejail --debug /usr/bin/nvim ~/.config/firejail/nvim.local.

Also, I'm not sure if builtin Firejail profiles are intended to be usable out-of-the-box--I'm not sure how the the nvim.profile is useful if it can't edit files you would want to edit like most in ~/.config and your scripts in ~/bin.

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P.S. I have sandboxed mpv and it should also have full access/usage to neovim (it launches neovim so I can take notes). Is there a straightforward way to include neovim's rules to give this access? I've tried adding the following to mpv.local (tried both beginning and end of mpv.local):

include nvim.local
include nvim.profile

but it's still launching nvim on a text file with restricted sandbox (errors accessing some nvim features).

If I run nvim sandboxed on the text file using the same nvim.local, it has full access (desired).