etc/hosts: add hosts.steamos

etc/hosts/.gitignore

@@ -0,0 +1 @@
+hosts.arch

etc/hosts/README.md

@@ -10,8 +10,10 @@ This file is DNS before DNS and legacy remain which is still used.
 
 - [`blocklist`](#blocklist)
 - [`dns`](#dns)
+- [`hosts.arch`](#hostsarch)
 - [`hosts.fedora`](#hostsfedora)
 - [`hosts.debian`](#hostsdebian)
+- [`hosts.steamos`](#hostssteamos)
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
@@ -30,6 +32,11 @@ and Unbound, so now it's something I can attempt to `/etc/hosts`.
 
 **_EXCERCISE CAUTION!_**
 
+## `hosts.arch`
+
+For now this is a symlink to `hosts.steamos` as I am pretty sure they haven't
+modified it.
+
 ## `hosts.fedora`
 
 I am pretty sure this is the `/etc/hosts` that was given me by Fedora < 40
@@ -39,3 +46,8 @@ with changes removed.
 
 I think this is the Debian format which used to be just `../hosts` in this
 repository.
+
+## `hosts.steamos`
+
+The `/etc/hosts` file from `SteamOS Holo` variant steamdeck version `3.5.19`
+or `20240422.1`.

etc/hosts/hosts.arch

@@ -0,0 +1 @@
+hosts.steamos

etc/hosts/hosts.steamos

@@ -0,0 +1,4 @@
+# Static table lookup for hostnames.
+# See hosts(5) for details.
+127.0.0.1      localhost
+::1            localhost