updated todo

TODO

@@ -1,16 +1,2 @@
-- Modify the following environment variables: (listed in environ(7))
-	* USER -> to target user
-	* LOGNAME -> to target user
-	* SHELL -> to the target user's SHELL
-	* HOME -> to the target user's HOME
-
-- fork before exec, that is because processes might try to kill us or the 
-	command but since they may run under elevated privileges they will get
-	permission denied error. If we remain the parent processes, unprivileged
-	proceses can send signals to us and we will relay them to our children
-	running at the same privilege as us. This is useful when:
-		- The child command hangs and we want to cose it, kinda
-			problematic but we could run kill with us as well
-		- The parent shell dies and children need to be killed, then 
-			since one of their children (us) has higher privileges
-			they can't kill us and we would end up as zombies
+- Allow for pam-less (native) login, for use with distros wo pam (Alpine) and
+  BSDs