new file: docs/README.md

	new file:   null.plugin.zsh

docs/README.md

@@ -0,0 +1,16 @@
+# `NULL`
+
+An empty repository to aid ZI atclone'' hook.
+
+Use case example: 
+
+```
+# The invocation uses https://github.com/z-shell/null repo as a placeholder
+# for the atclone'' and atpull'' hooks
+
+zi ice as"program" pick"$ZPFX/sdkman/bin/sdk" id-as'sdkman' run-atpull \
+  atclone"wget https://get.sdkman.io -O scr.sh; SDKMAN_DIR=$ZPFX/sdkman bash scr.sh" \
+  atpull"SDKMAN_DIR=$ZPFX/sdkman sdk selfupdate" \
+  atinit"export SDKMAN_DIR=$ZPFX/sdkman; source $ZPFX/sdkman/bin/sdkman-init.sh"
+zi light z-shell/null
+```

null.plugin.zsh

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+0="${${ZERO:-${0:#$ZSH_ARGZERO}}:-${(%):-%N}}"
+0="${${(M)0:#/*}:-$PWD/$0}"
+true