diff --git a/BeefySysLib/platform/posix/PosixCommon.cpp b/BeefySysLib/platform/posix/PosixCommon.cpp
index e108f0a9..9e54babe 100644
--- a/BeefySysLib/platform/posix/PosixCommon.cpp
+++ b/BeefySysLib/platform/posix/PosixCommon.cpp
@@ -1822,7 +1822,27 @@ BFP_EXPORT void BFP_CALLTYPE BfpDirectory_Create(const char* path, BfpFileResult
 
 BFP_EXPORT void BFP_CALLTYPE BfpDirectory_Rename(const char* oldName, const char* newName, BfpFileResult* outResult)
 {
-    NOT_IMPL;
+    if (rename(oldName, newName) != 0)
+    {
+        switch (errno)
+        {
+        case EEXIST:
+            OUTRESULT(BfpFileResult_AlreadyExists);
+            break;
+        case ENOTEMPTY:
+            OUTRESULT(BfpFileResult_NotEmpty);
+            break;
+        case EISDIR:
+        case ENOTDIR:
+            OUTRESULT(BfpFileResult_InvalidParameter);
+            break;
+        default:
+            OUTRESULT(BfpFileResult_UnknownError);
+            break;
+        }
+    }
+    else
+        OUTRESULT(BfpFileResult_Ok);
 }
 
 BFP_EXPORT void BFP_CALLTYPE BfpDirectory_Delete(const char* path, BfpFileResult* outResult)
diff --git a/IDE/src/util/GitManager.bf b/IDE/src/util/GitManager.bf
index dd845c02..daa33186 100644
--- a/IDE/src/util/GitManager.bf
+++ b/IDE/src/util/GitManager.bf
@@ -95,6 +95,8 @@ class GitManager
 				if (!File.Exists(gitPath))
 					gitPath.Clear();
 			}
+
+			psi.UseShellExecute = false;
 #endif
 			if (gitPath.IsEmpty)
 				gitPath.Set("git");
@@ -103,7 +105,6 @@ class GitManager
 			psi.SetArguments(mArgs);
 			if (mPath != null)
 				psi.SetWorkingDirectory(mPath);
-			psi.UseShellExecute = false;
 			psi.RedirectStandardError = true;
 			psi.RedirectStandardOutput = true;
 			psi.CreateNoWindow = true;
diff --git a/IDE/src/util/PackMan.bf b/IDE/src/util/PackMan.bf
index bb9fc14c..8e47aa78 100644
--- a/IDE/src/util/PackMan.bf
+++ b/IDE/src/util/PackMan.bf
@@ -179,7 +179,12 @@ namespace IDE.util
 			if (!CheckInit())
 				return;
 
-			String beefBuildPath = scope $"{gApp.mInstallDir}BeefBuild.exe";
+#if BF_PLATFORM_WINDOWS
+			let ext = ".exe";
+#else
+			let ext = "";
+#endif
+			String beefBuildPath = scope $"{gApp.mInstallDir}BeefBuild{ext}";
 			String args = scope $"-run";
 			var execInst = gApp.DoRun(beefBuildPath, args, path, .None);
 			execInst?.mAutoDelete = false;