config/git: add sysyadm

.config/git/config

@@ -157,3 +157,5 @@
 
 [includeIf "gitdir:~/data/.git"]
 	path = "config-data"
+[init]
+	defaultBranch = main

.config/shell/git

@@ -11,6 +11,10 @@ yc() {
   yadm commit -v --template /tmp/yc-msg ${@:2} -- "$XDG_CONFIG_HOME/$1"
 }
 
+alias sy="sysyadm"
+alias sysyadm="sudo yadm -Y /etc/yadm"
+alias sysinit="sysyadm init -w /; sysyadm config include.path '$XDG_CONFIG_HOME/git/config'"
+
 gcn() {
   if test $# -eq 0 || test -e $1
   then