···

       
8
       
8
       
 
       
[nixpkgs-channels](https://github.com/NixOS/nixpkgs-channels.git) as a remote:

     

       
9
       
9
       
 
       


     

       
10
       
10
       
 
       
```

     

       
11
       
11
       
-
       
% git remote add channels git://github.com/NixOS/nixpkgs-channels.git

     

       
11
       
11
       
+
       
% git remote add channels https://github.com/NixOS/nixpkgs-channels.git

     

       
12
       
12
       
 
       
```

     

       
13
       
13
       
 
       


     

       
14
       
14
       
 
       
For stability and maximum binary package support, it is recommended to maintain

     

···

       
9
       
9
       
 
       
    <para>

     

       
10
       
10
       
 
       
     Checkout the Nixpkgs source tree:

     

       
11
       
11
       
 
       
<screen>

     

       
12
       
12
       
-
       
$ git clone git://github.com/NixOS/nixpkgs.git 

     

       
12
       
12
       
+
       
$ git clone https://github.com/NixOS/nixpkgs

     

       
13
       
13
       
 
       
$ cd nixpkgs</screen>

     

       
14
       
14
       
 
       
    </para>

     

       
15
       
15
       
 
       
   </listitem>

     

···

       
14
       
14
       
 
       
xlink:href="http://nixos.org/nixpkgs/manual">Nixpkgs

     

       
15
       
15
       
 
       
  manual</link>. In short, you clone Nixpkgs:

     

       
16
       
16
       
 
       
<screen>

     

       
17
       
17
       
-
       
$ git clone git://github.com/NixOS/nixpkgs.git

     

       
17
       
17
       
+
       
$ git clone https://github.com/NixOS/nixpkgs

     

       
18
       
18
       
 
       
$ cd nixpkgs

     

       
19
       
19
       
 
       
</screen>

     

       
20
       
20
       
 
       
  Then you write and test the package as described in the Nixpkgs manual.

     

···

       
11
       
11
       
 
       
  modify NixOS, however, you should check out the latest sources from Git. This

     

       
12
       
12
       
 
       
  is as follows:

     

       
13
       
13
       
 
       
<screen>

     

       
14
       
14
       
-
       
$ git clone git://github.com/NixOS/nixpkgs.git

     

       
14
       
14
       
+
       
$ git clone https://github.com/NixOS/nixpkgs

     

       
15
       
15
       
 
       
$ cd nixpkgs

     

       
16
       
16
       
-
       
$ git remote add channels git://github.com/NixOS/nixpkgs-channels.git

     

       
16
       
16
       
+
       
$ git remote add channels https://github.com/NixOS/nixpkgs-channels

     

       
17
       
17
       
 
       
$ git remote update channels

     

       
18
       
18
       
 
       
</screen>

     

       
19
       
19
       
 
       
  This will check out the latest Nixpkgs sources to