diff --git a/rebar.config b/rebar.config
index fa815e5..4b02c10 100644
--- a/rebar.config
+++ b/rebar.config
@@ -6,8 +6,6 @@
                             {ref, "0288719ae1"}}}
        ]}.
 
-{post_hooks, [{compile, "./zompify.sh"}]}.
-
 {xref_checks, [undefined_function_calls, undefined_functions,
                locals_not_used,
                deprecated_function_calls, deprecated_functions]}.
diff --git a/src/gmmpp_msgs.erl b/src/gmmpp_msgs.erl
index 09843af..23913d9 100644
--- a/src/gmmpp_msgs.erl
+++ b/src/gmmpp_msgs.erl
@@ -334,7 +334,7 @@ valid_(pos_int, I)   -> pos_integer(I);
 valid_(string, S)    -> is_binary(S);
 valid_(boolean, B)   -> is_boolean(B);
 valid_(contract, Id) -> ok_tuple(gmser_api_encoder:safe_decode(contract_pubkey, Id));
-valid_(type, T)      -> lists:member(T, [miner, monitor]);
+valid_(type, T)      -> lists:member(T, [worker, monitor]);
 valid_(solutions, S) -> lists:all(fun(#{nonce := N, evidence := Evd}) ->
                                           valid_(pos_int, N),
                                           valid_({list, pos_int}, Evd)
diff --git a/zompify.sh b/zompify.sh
index 3c56b80..66aca1c 100755
--- a/zompify.sh
+++ b/zompify.sh
@@ -2,11 +2,41 @@
 set -e
 
 APP=$(basename "$PWD")
+
 SRC="_build/default/lib/$APP"
 DST="$PWD/_build/zomp/lib/$APP"
+IGNORE_FILE="zomp.ignore"
+
 mkdir -p "$DST"
-find "$SRC" -type l ! -exec test -e {} \; -delete
-cp -aR -L "$SRC/." "$DST/"
+
+# Remove broken symlinks
+find "$SRC" -type l ! -exec test -e {} \; -delete || true
+
+# Build ignore matcher
+IGNORE_TEMP=$(mktemp)
+trap "rm -f $IGNORE_TEMP" EXIT
+
+# Expand globs in zomp.ignore to patterns suitable for grep
+if [ -e "$IGNORE_FILE" ]; then
+   grep -v '^\s*#' "$IGNORE_FILE" | sed 's#/#\\/#g' | sed 's/\./\\./g' | sed 's/\*/.*/g' > "$IGNORE_TEMP"
+fi
+
+# Copy Git-tracked and Zomp-allowed files
+git ls-files -z | while IFS= read -r -d '' file; do
+    # Skip if ignored
+    echo "$file" | grep -Eq -f "$IGNORE_TEMP" && continue
+    # Only copy if file exists in the build dir
+    if [ -e "$SRC/$file" ]; then
+        mkdir -p "$DST/$(dirname "$file")"
+        cp -a "$SRC/$file" "$DST/$file"
+    fi
+done
+
+rm "$IGNORE_TEMP"
+
+# Copy metadata
 cp "$PWD/zomp.meta" "$DST/"
-cp "$PWD/Emakefile" "$DST"
-rm "$DST"/ebin/*.beam
+cp "$PWD/Emakefile" "$DST/"
+
+# Clean up beam files just in case
+[ -d "$DST/ebin" ] && find "$DST/ebin" -name '*.beam' -exec rm -f {} + || true