diff --git a/README.md b/README.md
index 3d37d16..f84a0da 100644
--- a/README.md
+++ b/README.md
@@ -84,7 +84,7 @@ Available recipes:
     expand    # [alias: e]
     fmt       # [alias: f]
     install   # [alias: i]
-    make-app  # [alias: mkapp]
+    make-app  # [alias: mk, mkapp]
     package   # [alias: p, pkg]
     run       # [alias: ru]
     runtest   # [alias: rt]
@@ -120,15 +120,15 @@ BIN_APP_PATH := "/usr/local/bin"
 
 | Recipe | alias | Descripción  | parameters |
 |--------|-------|--------------|--------------------|
-| **build** | b | run cargo | |
-| **buildall** | ba, ball | on MacOS: <br><ul><li>build target releases for aarch64, x86_64</li><li>create universal (apple-darwin)i with <u>lipo</u></li></ul>on Linux: <ul><li>build target release</li></ul> | |
-| **run** | ru | run cargo b -r | |
-| **expand** | e | run cargo expand | |
-| **fmt** | f | run cargo +nightly fmt | |
-| **clean** | cl | run cargo clean | |
-| **doc** | d | run cargo doc --open --no-deps | |
-| **benchmark** | be | run cargo bench | |
-| **test*** | be | run cargo t | |
+| **build** | b | run cargo | cargo arguments |
+| **buildall** | ba, ball | on MacOS: <br><ul><li>build target releases for aarch64, x86_64</li><li>create universal (apple-darwin)i with <u>lipo</u></li></ul>on Linux: <ul><li>build target release</li></ul> | architecture (arm64 or x86_64 or universal) |
+| **run** | ru | run cargo b -r | cargo arguments |
+| **expand** | e | run cargo expand | cargo arguments |
+| **fmt** | f | run cargo +nightly fmt | cargo arguments |
+| **clean** | cl | run cargo clean | cargo arguments |
+| **doc** | d | run cargo doc --open --no-deps | cargo arguments |
+| **benchmark** | be | run cargo bench | cargo arguments |
+| **test*** | be | run cargo t | cargo arguments |
 | **runtest** | rt | run [run.sh](run.sh) script using [test](test) directories for **SOURCE** and **DEST** parametets | |
 
 ## To work on app
@@ -136,7 +136,7 @@ BIN_APP_PATH := "/usr/local/bin"
 | Recipe | alias | Descripción  | parameters |
 |--------|-------|--------------|--------------------|
 | **install** | i | on MacOS: <ul><li>install [dir-odt-to-pdf.app](macos/dir-odt-to-pdf.app)</li><li> **make-run** and install commands</li></ul>on Linux: <ul><li>**just make-run**</li><li>install commands</li></ul>| |
-| **make-app** | mkapp | on MacOS: <ul><li>make app [dir-odt-to-pdf.app](macos/dir-odt-to-pdf.app) in [macos](macos) directory</li><li>Add icons and commands</li></ul>on Linux: <ul><li>**just buildall**</li></ul> | |
+| **make-app** | mk , mkapp | on MacOS: <ul><li>make app [dir-odt-to-pdf.app](macos/dir-odt-to-pdf.app) in [macos](macos) directory</li><li>Add icons and commands</li></ul>on Linux: <ul><li>**just buildall**</li></ul> | architecture (arm64 or x86_64 or universal) |
 | **make-run** |  | on MacOS: <ul><li>install [dir-odt-to-pdf.app](macos/dir-odt-to-pdf.app)</li><li>**just delete-run**</li><li>install commands</li></ul>on Linux: <ul><li>**just delete-run**</li><li>install commands</li></ul>| |
 | **delete-run** |  | Ask for replace **run-dir-odt-to-pdf.sh** created from [run.sh](run.sh) | |
-| **package** |  | on MacOS: <ul><li>**just make-app**</li><li>create **DirOdtToPdf.dmg** DMG package in [packages](packages)<br>with [macos README](macos/README) and [macos install](macos/install.command)</li></ul>on Linux: <ul><li>**just make-app**</li><li>pack binary in compressed archive<br> with  [linux](linux) files and commands</li></ul> | |
+| **package** |  | on MacOS: <ul><li>**just make-app**</li><li>create **DirOdtToPdf.dmg** DMG package in [packages](packages)<br>with [macos README](macos/README) and [macos install](macos/install.command)</li></ul>on Linux: <ul><li>**just make-app**</li><li>pack binary in compressed archive<br> with  [linux](linux) files and commands</li></ul> | architecture (arm64 or x86_64 or universal) |
diff --git a/justfile b/justfile
index c9c549d..da5ec06 100644
--- a/justfile
+++ b/justfile
@@ -10,6 +10,7 @@ alias rt := runtest
 alias ru := run
 alias cl := clean
 alias mkapp := make-app
+alias mk := make-app
 alias i := install
 alias p := package
 alias pkg := package
@@ -28,39 +29,47 @@ SRC_MACOS := file_name(justfile_directory()) + ".scpt"
 RUN_SRC := "run.sh"
 BIN_APP_PATH := "/usr/local/bin"
 
+set positional-arguments
+
 default:
    @just -l
 
-build:
-    cargo build
+[positional-arguments]
+build *ARGS: 
+	cargo build {{ARGS}}
 
 [linux]
-buildall:
+buildall *ARGS: 
 	@echo "Build {{BOLD + MAGENTA}}{{APP_NAME}}{{NORMAL}} ... "
-	cargo build --release
+	cargo build --release {{ARGS}}
 
 [macos]
-buildall:
-	@echo "\nBuild {{BOLD + MAGENTA}}{{APP_NAME}}{{NORMAL}} universal for {{BOLD + GREEN}}{{os()}}{{NORMAL}} architectures ... "
-	@echo "\n{{BOLD + MAGENTA + INVERT}}Apple Silicon (arm64){{NORMAL}}"
-	cargo build --target aarch64-apple-darwin --release
-	@echo "\n{{BOLD + MAGENTA + INVERT}}Intel (x86_64){{NORMAL}} "
-	cargo build --target x86_64-apple-darwin --release
-	@if ! test -r target/apple-darwin/release ; then \
+buildall *ARGS: 
+	@if test -z {{ARGS}} || test {{ARGS}} = "universal" || test {{ARGS}} = "aarch64" || test {{ARGS}} = "arm64"; then \
+		echo "\nBuild {{BOLD + MAGENTA}}{{APP_NAME}}{{NORMAL}} universal for {{BOLD + GREEN}}{{os()}}{{NORMAL}} architectures ... " ; \
+		echo "\n{{BOLD + MAGENTA + INVERT}}Apple Silicon (arm64){{NORMAL}}" ;\
+		cargo build --target aarch64-apple-darwin --release ;\
+	fi
+	@if test -z {{ARGS}} || test {{ARGS}} = "universal" || test {{ARGS}} = "x86_64" || test {{ARGS}} = "x86"; then \
+		echo "\n{{BOLD + MAGENTA + INVERT}}Intel (x86_64){{NORMAL}} " ;\
+		cargo build --target x86_64-apple-darwin --release ;\
+	fi
+	@if test -z {{ARGS}} || test {{ARGS}} = "universal" && ! test -r target/apple-darwin/release ; then \
 		mkdir -p target/apple-darwin/release; \
 	fi 
-	@if type -p lipo > /dev/null; then \
+	@if test -z {{ARGS}} || test {{ARGS}} = "universal" && type -p lipo > /dev/null; then \
 		lipo -create \
 			-output target/apple-darwin/release/{{APP_NAME}} \
 			target/aarch64-apple-darwin/release/{{APP_NAME}} \
 			target/x86_64-apple-darwin/release/{{APP_NAME}} ; \
 	fi
-	@if test -r target/apple-darwin/release/{{APP_NAME}} ; then \
+	@if test -z {{ARGS}} || test {{ARGS}} = "universal" && test -r target/apple-darwin/release/{{APP_NAME}} ; then \
 		echo "\n{{BOLD + GREEN + INVERT}}target/apple-darwin/release/{{APP_NAME}}{{NORMAL}} created";\
 	fi 
 
 [macos]
-make-app: buildall
+make-app *ARGS: 
+	@just buildall {{ARGS}}
 	@if test -r {{MACOS_ROOT_PATH + SRC_MACOS}} ; then \
 		echo "\n{{BOLD + GREEN + INVERT}}{{MACOS_APP_PATH}}{{NORMAL}}";\
 		echo "creating from {{BOLD + MAGENTA}}{{MACOS_ROOT_PATH + SRC_MACOS}}{{NORMAL}}";\
@@ -77,10 +86,20 @@ make-app: buildall
 	    cp {{MACOS_APP_ICNS_PATH}} {{MACOS_ROOT_PATH + MACOS_APP_PATH + "/Contents/Resources/applet.icns"}}; \
 		echo "\nCopy {{BOLD + MAGENTA}}{{MACOS_APP_ICNS_PATH}}{{NORMAL}} to {{BOLD + GREEN}}{{MACOS_APP_PATH + "/Contents/Resources/applet.icns"}}{{NORMAL}}";\
 	fi
-	@cd {{justfile_directory()}} && if test -r target/apple-darwin/release/{{APP_NAME}} ; then \
+	@cd {{justfile_directory()}} && \
+	if [[ "{{ARGS}}" == "aarch64" || "{{ARGS}}" == "arm64" && -r target/aarch64-apple-darwin/release/{{APP_NAME}} ]] ; then \
+		cp {{'target/aarch64-apple-darwin/release/' + APP_NAME}} {{MACOS_ROOT_PATH + MACOS_APP_PATH + "/Contents/MacOS/" + APP_NAME}}; \
+		echo "\n{{BOLD + GREEN + INVERT}}target/aarch64-apple-darwin/release/{{APP_NAME}}{{NORMAL}} to Contets/MacOS/{{APP_NAME}}";\
+	elif [[ "{{ARGS}}" == "x86_64" || "{{ARGS}}" == "x86" && -r target/x86_64-apple-darwin/release/{{APP_NAME}} ]] ; then \
+		cp {{'target/x86_64-apple-darwin/release/' + APP_NAME}} {{MACOS_ROOT_PATH + MACOS_APP_PATH + "/Contents/MacOS/" + APP_NAME}}; \
+		echo "\n{{BOLD + GREEN + INVERT}}target/x86_64-apple-darwin/release/{{APP_NAME}}{{NORMAL}} to Contets/MacOS/{{APP_NAME}}"; \
+	elif [[ -z "{{ARGS}}" || "{{ARGS}}" == "universal" && -r target/apple-darwin/release/{{APP_NAME}} ]]; then \
 		cp {{'target/apple-darwin/release/' + APP_NAME}} {{MACOS_ROOT_PATH + MACOS_APP_PATH + "/Contents/MacOS/" + APP_NAME}}; \
 		echo "\n{{BOLD + GREEN + INVERT}}target/apple-darwin/release/{{APP_NAME}}{{NORMAL}} to Contets/MacOS/{{APP_NAME}}";\
-	fi 
+	else \
+		echo "Arquitectura no válida: {{ARGS}}"; \
+		exit 1; \
+	fi
 	@cd {{justfile_directory()}} && if test -r {{RUN_SRC}} ; then \
 		cat {{RUN_SRC}} | sed 's,:-\.,:-{{justfile_directory()}},g' |\
 		sed 's,/usr/local/bin,{{BIN_APP_PATH}},g' > {{MACOS_ROOT_PATH + MACOS_APP_PATH + '/Contents/MacOS/run-' + APP_NAME + '.sh'}}; \
@@ -89,10 +108,12 @@ make-app: buildall
 	fi 
 
 [linux]
-make-app: buildall
+make-app *ARGS: 
+	@just buildall {{ARGS}}
 
 [macos]
-package: make-app
+package *ARGS: 
+	@just make-app {{ARGS}}
 	@if test -r {{'/Volumes/' + APP_PACKAGE}} ; then \
 		hdiutil detach {{'/Volumes/' + APP_PACKAGE}}; \
 	fi 
@@ -155,7 +176,8 @@ package: make-app
 	fi 
 
 [linux]
-package:
+package *ARGS: 
+	@just make-app {{ARGS}}
 	@if test -r {{APP_PACKAGES_PATH + APP_PACKAGE}} ; then \
 		rm -rf {{APP_PACKAGES_PATH + APP_PACKAGE}}; \
 	fi 
@@ -198,7 +220,8 @@ make-run:
 	fi 
 
 [linux]
-install: make-app
+install *ARGS: 
+	@just make-app {{ARGS}}
 	@echo "\nInstall {{BOLD + GREEN + INVERT}}{{BIN_APP_PATH}}{{NORMAL}}";
 	@cd {{justfile_directory()}} && if test -r target/{{APP_NAME}} ; then \
 		cp -p target/{{APP_NAME}} {{BIN_APP_PATH}};\
@@ -206,7 +229,8 @@ install: make-app
 	fi 
 
 [macos]
-install: make-app
+install *ARGS: 
+	@just make-app {{ARGS}}
 	@echo "\nInstall {{BOLD + GREEN + INVERT}}{{MACOS_APP_PATH}}{{NORMAL}}"  >/tmp/i;
 	@cd {{justfile_directory()}} && if test -r target/{{APP_NAME}} ; then \
 		cp -p target/{{APP_NAME}} {{BIN_APP_PATH}};\
@@ -222,14 +246,14 @@ install: make-app
 	fi 
 	@just make-run
 
-test:
-    cargo t 
+test *ARGS: 
+	cargo t {{ARGS}}
 
-expand:
-    cargo expand 
+expand *ARGS: 
+	cargo expand {{ARGS}}
 
-benchmark:
-    cargo bench
+benchmark *ARGS: 
+	cargo bench {{ARGS}}
 
 runtest:
 	@cd {{justfile_directory()}} && if test -d "test/documents" ; then \
@@ -239,14 +263,14 @@ runtest:
 		./{{RUN_SRC}}; \
 	fi 
 
-run:
-    cargo b -r 
+run *ARGS: 
+	cargo b -r {{ARGS}}
 
-fmt:
-	cargo +nightly fmt
+fmt *ARGS: 
+	cargo +nightly fmt {{ARGS}}
 
-clean:
-    cargo clean
+clean *ARGS: 
+	cargo clean {{ARGS}}
 	
-doc:
-	cargo doc --open --no-deps 
+doc *ARGS: 
+	cargo doc --open --no-deps {{ARGS}}