ref: 1a8989a556d7eebe4780f07ae89462f681fe733a
dir: /nixos/README.md/
# Read-only 9pex in NixOS
```
sudo mkdir -p /etc/nixos/pkgs
sudo cp ninepex.nix /etc/nixos/pkgs/
```
And change `/etc/nixos/configuration.nix`:
```
{ config, pkgs, ... }:
let
ninepex = pkgs.callPackage ./pkgs/ninepex.nix {};
in
{
.................
services.xinetd = {
enable = true;
services = [
{
name = "9pfs";
port = 564;
user = "none";
server = "${ninepex}/bin/9pex";
serverArgs = "/home/9";
flags = "KEEPALIVE REUSE";
extraConfig = ''
instances = UNLIMITED
'';
}
];
};
.................
users.users.none = {
isNormalUser = false;
isSystemUser = false;
createHome = true;
home = "/home/9";
shell = "${pkgs.shadow}/bin/nologin";
};
```
Files go to `/home/9`. With `rsync` it can be done as so:
```
rsync -iCaR \
--exclude='.git*' \
--exclude='*.out' \
--exclude='*.[0125678vqki]' \
--exclude='[0125678vqki].*' \
--delete-excluded --delete \
--chown none:nogroup \
dir1 dir2 dir3 \
root@host:/home/9/
```