diff --git a/.github/workflows/commits.yml b/.github/workflows/commits.yml
deleted file mode 100644
index 541a8f9..0000000
--- a/.github/workflows/commits.yml
+++ /dev/null
@@ -1,40 +0,0 @@
-name: Commits
-on:
-  - pull_request
-
-permissions:
-  contents: read
-
-jobs:
-  dco-check:
-    permissions:
-      pull-requests: read  # for tim-actions/get-pr-commits to get list of commits from the PR
-    name: Signed-off-by (DCO)
-    runs-on: ubuntu-20.04
-    steps:
-    - name: Get PR Commits
-      id: 'get-pr-commits'
-      uses: tim-actions/get-pr-commits@master
-      with:
-        token: ${{ secrets.GITHUB_TOKEN }}
-
-    - name: Check that all commits are signed-off
-      uses: tim-actions/dco@master
-      with:
-        commits: ${{ steps.get-pr-commits.outputs.commits }}
-
-  target-branch:
-    permissions:
-      contents: none
-    name: Branch target
-    runs-on: ubuntu-20.04
-    steps:
-    - name: Check branch target
-      env:
-        TARGET: ${{ github.event.pull_request.base.ref }}
-      run: |
-        set -x
-        [ "${TARGET}" = "main" ] && exit 0
-
-        echo "Invalid branch target: ${TARGET}"
-        exit 1
diff --git a/ext/lxc/lxc.c b/ext/lxc/lxc.c
index 6a1f394..b0ec634 100644
--- a/ext/lxc/lxc.c
+++ b/ext/lxc/lxc.c
@@ -41,28 +41,8 @@ extern void *rb_thread_call_without_gvl(void *(*func)(void *), void *data1,
 #define RELEASING_GVL2(func, arg, killfunc, killarg) func(arg)
 #endif
 
-//extern int lxc_wait_for_pid_status(pid_t pid);
-#include <sys/types.h>
-#include <sys/wait.h>
-int lxc_wait_for_pid_status(pid_t pid)
-{
-	int status, ret;
-
-again:
-	ret = waitpid(pid, &status, 0);
-	if (ret == -1) {
-		if (errno == EINTR)
-			goto again;
-
-		return -1;
-	}
-
-	if (ret != pid)
-		goto again;
-
-	return status;
-}
-//extern long lxc_config_parse_arch(const char *arch);
+extern int lxc_wait_for_pid_status(pid_t pid);
+extern long lxc_config_parse_arch(const char *arch);
 
 static VALUE Container;
 static VALUE Error;
@@ -118,24 +98,24 @@ free_c_string_array(char **arr)
  * "personality", either +:linux32+ or +:linux+, for the 32-bit and 64-bit
  * architectures, respectively.
  */
-//static VALUE
-//lxc_arch_to_personality(VALUE self, VALUE rb_arch)
-//{
-//    int ret;
-//    char *arch;
-//
-//    arch = StringValuePtr(rb_arch);
-//    ret = lxc_config_parse_arch(arch);
-//
-//    switch (ret) {
-//    case PER_LINUX32:
-//        return SYMBOL("linux32");
-//    case PER_LINUX:
-//        return SYMBOL("linux");
-//    default:
-//        rb_raise(Error, "unknown personality");
-//    }
-//}
+static VALUE
+lxc_arch_to_personality(VALUE self, VALUE rb_arch)
+{
+    int ret;
+    char *arch;
+
+    arch = StringValuePtr(rb_arch);
+    ret = lxc_config_parse_arch(arch);
+
+    switch (ret) {
+    case PER_LINUX32:
+        return SYMBOL("linux32");
+    case PER_LINUX:
+        return SYMBOL("linux");
+    default:
+        rb_raise(Error, "unknown personality");
+    }
+}
 
 /*
  * call-seq:
@@ -2147,8 +2127,8 @@ Init_lxc(void)
 {
     VALUE LXC = rb_define_module("LXC");
 
-    //rb_define_singleton_method(LXC, "arch_to_personality",
-    //                           lxc_arch_to_personality, 1);
+    rb_define_singleton_method(LXC, "arch_to_personality",
+                               lxc_arch_to_personality, 1);
     rb_define_singleton_method(LXC, "run_command", lxc_run_command, 1);
     rb_define_singleton_method(LXC, "run_shell", lxc_run_shell, 0);
     rb_define_singleton_method(LXC, "global_config_item",