diff --git a/install.zsh b/install.zsh
index 26e1dc6..7ba902f 100755
--- a/install.zsh
+++ b/install.zsh
@@ -572,8 +572,179 @@ curl -sL -X POST -H "Content-Type: application/json" -H "Authorization: Bearer $
 	https://${host}/xrpc/com.atproto.repo.putRecord
 }
 
+# ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+# Patch creation helpers
+# ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+
+# Find existing patches that modify the same file
+# Usage: at-patch-find-conflicts <filepath> <patch-dir>
+function at-patch-find-conflicts() {
+	local filepath="$1"
+	local patch_dir="$2"
+	local conflicts=()
+
+	if [ ! -d "$patch_dir" ]; then
+		return
+	fi
+
+	for pf in "$patch_dir"/*.patch(N) "$patch_dir"/*.diff(N); do
+		[ -f "$pf" ] || continue
+		if grep -q "^--- a/$filepath" "$pf" 2>/dev/null || grep -q "^+++ b/$filepath" "$pf" 2>/dev/null; then
+			conflicts+=("$(basename "$pf")")
+		fi
+	done
+
+	if [ ${#conflicts[@]} -gt 0 ]; then
+		echo "⚠️  This file is also modified by:"
+		for c in "${conflicts[@]}"; do
+			echo "   - $c"
+		done
+		echo ""
+		echo "   Ensure patches are applied in order before patch-begin."
+		echo "   Baseline must reflect the post-earlier-patches state."
+	fi
+}
+
+# Save current file state as baseline for patch creation
+# Usage: ./install.zsh patch-begin <repo> <file-path> [--ios]
+# Example: ./install.zsh patch-begin social-app "src/screens/Profile/Header/ProfileHeaderStandard.tsx" --ios
+function at-patch-begin() {
+	local repo="$1"
+	local filepath="$2"
+	local flag="$3"
+
+	if [ -z "$repo" ] || [ -z "$filepath" ]; then
+		echo "Usage: ./install.zsh patch-begin <repo> <file-path> [--ios]"
+		echo "Example: ./install.zsh patch-begin social-app \"src/screens/Profile/Header/ProfileHeaderStandard.tsx\" --ios"
+		return 1
+	fi
+
+	local full_path="$d/repos/$repo/$filepath"
+	if [ ! -f "$full_path" ]; then
+		echo "❌ File not found: $full_path"
+		return 1
+	fi
+
+	local tmp_file="/tmp/patch-base--$(echo "$filepath" | tr '/' '-')"
+	cp "$full_path" "$tmp_file"
+
+	echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
+	echo "✅ Baseline saved: $tmp_file"
+	echo "   File: $full_path"
+	echo ""
+
+	# Check for conflicting patches
+	if [ "$flag" = "--ios" ]; then
+		at-patch-find-conflicts "$filepath" "$d/ios/patching"
+	else
+		at-patch-find-conflicts "$filepath" "$d/patching"
+	fi
+
+	echo "Next steps:"
+	echo "  1. Edit: $full_path"
+	echo "  2. Save: ./install.zsh patch-save <NNN-name.patch> $repo \"$filepath\" ${flag:---ios}"
+	echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
+}
+
+# Generate patch from baseline diff
+# Usage: ./install.zsh patch-save <patch-filename> <repo> <file-path> [--ios]
+# Example: ./install.zsh patch-save 042-social-app-ios-feature.patch social-app "src/path/to/file.tsx" --ios
+function at-patch-save() {
+	local patch_filename="$1"
+	local repo="$2"
+	local filepath="$3"
+	local flag="$4"
+
+	if [ -z "$patch_filename" ] || [ -z "$repo" ] || [ -z "$filepath" ]; then
+		echo "Usage: ./install.zsh patch-save <patch-filename> <repo> <file-path> [--ios]"
+		echo "Example: ./install.zsh patch-save 042-social-app-ios-feature.patch social-app \"src/file.tsx\" --ios"
+		return 1
+	fi
+
+	local full_path="$d/repos/$repo/$filepath"
+	local tmp_file="/tmp/patch-base--$(echo "$filepath" | tr '/' '-')"
+
+	if [ ! -f "$tmp_file" ]; then
+		echo "❌ No baseline found. Run 'patch-begin' first."
+		return 1
+	fi
+	if [ ! -f "$full_path" ]; then
+		echo "❌ File not found: $full_path"
+		return 1
+	fi
+
+	# Determine output directory
+	local patch_dir="$d/patching"
+	if [ "$flag" = "--ios" ]; then
+		patch_dir="$d/ios/patching"
+	fi
+
+	# Generate diff with proper a/b paths
+	diff -u "$tmp_file" "$full_path" \
+		| sed "1s|--- .*|--- a/$filepath|" \
+		| sed "2s|+++ .*|+++ b/$filepath|" \
+		> "$patch_dir/$patch_filename"
+
+	local line_count
+	line_count=$(wc -l < "$patch_dir/$patch_filename" | tr -d ' ')
+	if [ "$line_count" -eq 0 ]; then
+		echo "⚠️  No differences found. Patch file is empty."
+		rm "$patch_dir/$patch_filename"
+		return 1
+	fi
+
+	echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
+	echo "📝 Patch: $patch_dir/$patch_filename ($line_count lines)"
+
+	# Dry-run verify: restore baseline, test patch, restore edit
+	pushd "$d/repos/$repo" > /dev/null
+	cp "$full_path" /tmp/patch-edited-tmp
+	cp "$tmp_file" "$full_path"
+
+	if patch --dry-run -p1 < "$patch_dir/$patch_filename" > /dev/null 2>&1; then
+		echo "✅ Dry-run: OK"
+	else
+		echo "❌ Dry-run: FAILED"
+		patch --dry-run -p1 < "$patch_dir/$patch_filename" 2>&1 | head -5
+	fi
+
+	cp /tmp/patch-edited-tmp "$full_path"
+	rm -f /tmp/patch-edited-tmp
+	popd > /dev/null
+
+	rm -f "$tmp_file"
+	echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
+}
+
+# Verify all patches can be applied (full dry-run)
+# Usage: ./install.zsh patch-check [--ios]
+function at-patch-check() {
+	local flag="$1"
+
+	if [ "$flag" = "--ios" ]; then
+		echo "Checking iOS patches against: $d/repos/social-app"
+		pushd "$d/repos/social-app" > /dev/null
+		for pf in "$d/ios/patching"/*.patch; do
+			[ -f "$pf" ] || continue
+			local name="$(basename "$pf")"
+			if patch --dry-run -p1 < "$pf" > /dev/null 2>&1; then
+				echo "  ✅ $name"
+			else
+				echo "  ❌ $name"
+			fi
+		done
+		popd > /dev/null
+	else
+		echo "Checking server patches..."
+		for pf in "$d/patching"/*.patch "$d/patching"/*.diff; do
+			[ -f "$pf" ] || continue
+			echo "  $(basename "$pf")"
+		done
+	fi
+}
+
 at-repos-env
-case "$1" in 
+case "$1" in
 	pull)
 		at-repos-clone
 		at-repos-pull
@@ -587,6 +758,18 @@ case "$1" in
 		show-failed-patches
 		exit
 		;;
+	patch-begin)
+		at-patch-begin "$2" "$3" "$4"
+		exit
+		;;
+	patch-save)
+		at-patch-save "$2" "$3" "$4" "$5"
+		exit
+		;;
+	patch-check)
+		at-patch-check "$2"
+		exit
+		;;
 	build)
 		at-repos-build-docker-atproto $2
 		exit