diff --git a/README.md b/README.md
index ff394b2..b2341b8 100644
--- a/README.md
+++ b/README.md
@@ -159,17 +159,12 @@ a typical hierarchical structure under `~/.ndk-pkg` directory looks like below:
 │   ├── init.rc
 │   ├── ndk-pkg-core-2024.05.15-linux-x86_64.tar.xz
 │   ├── ndk-pkg-core-latest-release-version
-│   ├── sed-in-place
 │   ├── uppm
 │   ├── wrapper-native-cc
 │   ├── wrapper-native-c++
 │   ├── wrapper-native-objc
 │   ├── wrapper-target-cc
-│   ├── wrapper-target-c++
-│   ├── zig-cc
-│   ├── zig-c++
-│   ├── zig-ar
-│   └── zig-ranlib
+│   └── wrapper-target-c++
 ├── downloads
 │   ├── 8f74213b56238c85a50a5329f77e06198771e70dd9a739779f4c02f65d971313.tgz
 │   ├── b3a24de97a8fdbc835b9833169501030b8977031bcb54b3b3ac13740f846ab30.tgz
diff --git a/zig-ar.c b/zig-ar.c
deleted file mode 100644
index 6534023..0000000
--- a/zig-ar.c
+++ /dev/null
@@ -1,31 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-int main(int argc, char * argv[]) {
-    char * const zig = getenv("ZIG");
-
-    if (zig == NULL) {
-        fprintf(stderr, "ZIG environment variable is not set.\n");
-        return 1;
-    }
-
-    if (zig[0] == '\0') {
-        fprintf(stderr, "ZIG environment variable value should be a non-empty string.\n");
-        return 2;
-    }
-
-    char* argv2[argc + 2];
-
-    argv2[0] = zig;
-    argv2[1] = (char*)"ar";
-    argv2[argc+1] = NULL;
-
-    for (int i = 1; i < argc; i++) {
-        argv2[i+1] = argv[i];
-    }
-
-    execv (zig, argv2);
-    perror(zig);
-    return 255;
-}
diff --git a/zig-c++.c b/zig-c++.c
deleted file mode 100644
index cc83f23..0000000
--- a/zig-c++.c
+++ /dev/null
@@ -1,31 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-int main(int argc, char * argv[]) {
-    char * const zig = getenv("ZIG");
-
-    if (zig == NULL) {
-        fprintf(stderr, "ZIG environment variable is not set.\n");
-        return 1;
-    }
-
-    if (zig[0] == '\0') {
-        fprintf(stderr, "ZIG environment variable value should be a non-empty string.\n");
-        return 2;
-    }
-
-    char* argv2[argc + 2];
-
-    argv2[0] = zig;
-    argv2[1] = (char*)"c++";
-    argv2[argc+1] = NULL;
-
-    for (int i = 1; i < argc; i++) {
-        argv2[i+1] = argv[i];
-    }
-
-    execv (zig, argv2);
-    perror(zig);
-    return 255;
-}
diff --git a/zig-cc.c b/zig-cc.c
deleted file mode 100644
index bd52618..0000000
--- a/zig-cc.c
+++ /dev/null
@@ -1,31 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-int main(int argc, char * argv[]) {
-    char * const zig = getenv("ZIG");
-
-    if (zig == NULL) {
-        fprintf(stderr, "ZIG environment variable is not set.\n");
-        return 1;
-    }
-
-    if (zig[0] == '\0') {
-        fprintf(stderr, "ZIG environment variable value should be a non-empty string.\n");
-        return 2;
-    }
-
-    char* argv2[argc + 2];
-
-    argv2[0] = zig;
-    argv2[1] = (char*)"cc";
-    argv2[argc+1] = NULL;
-
-    for (int i = 1; i < argc; i++) {
-        argv2[i+1] = argv[i];
-    }
-
-    execv (zig, argv2);
-    perror(zig);
-    return 255;
-}
diff --git a/zig-ranlib.c b/zig-ranlib.c
deleted file mode 100644
index 36e8521..0000000
--- a/zig-ranlib.c
+++ /dev/null
@@ -1,31 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-int main(int argc, char * argv[]) {
-    char * const zig = getenv("ZIG");
-
-    if (zig == NULL) {
-        fprintf(stderr, "ZIG environment variable is not set.\n");
-        return 1;
-    }
-
-    if (zig[0] == '\0') {
-        fprintf(stderr, "ZIG environment variable value should be a non-empty string.\n");
-        return 2;
-    }
-
-    char* argv2[argc + 2];
-
-    argv2[0] = zig;
-    argv2[1] = (char*)"ranlib";
-    argv2[argc+1] = NULL;
-
-    for (int i = 1; i < argc; i++) {
-        argv2[i+1] = argv[i];
-    }
-
-    execv (zig, argv2);
-    perror(zig);
-    return 255;
-}