diff --git a/examples/zig-fn.zig b/examples/zig-fn.zig
index 3175e63..203fd6b 100644
--- a/examples/zig-fn.zig
+++ b/examples/zig-fn.zig
@@ -50,7 +50,7 @@ pub fn main() anyerror!void {
     lua.setGlobal("add");
 
     // We need to open the base library so the global print() is available
-    lua.open(.{ .base = true });
+    lua.openBase();
 
     // Our "program" is an inline string
     lua.doString(
diff --git a/src/lib.zig b/src/lib.zig
index eba77b6..885cff1 100644
--- a/src/lib.zig
+++ b/src/lib.zig
@@ -435,13 +435,6 @@ pub const Libs53 = packed struct {
     debug: bool = false,
 };
 
-/// Bitflag for the Lua standard libraries
-pub const Libs = switch (lang) {
-    .lua51, .luajit => Libs51,
-    .lua52 => Libs52,
-    .lua53, .lua54, .luau => Libs53,
-};
-
 /// The type of the opaque structure that points to a thread and the state of a Lua interpreter
 pub const LuaState = c.lua_State;
 
@@ -2956,30 +2949,6 @@ pub const Lua = struct {
 
     // Standard library loading functions
 
-    /// Opens the specified standard library functions
-    /// Behaves like openLibs, but allows specifying which libraries
-    /// to expose to the global table rather than all of them
-    /// See https://www.lua.org/manual/5.4/manual.html#luaL_openlibs
-    pub fn open(lua: *Lua, libs: Libs) void {
-        if (libs.base) lua.requireF("_G", c.luaopen_base, true);
-        if (libs.string) lua.requireF(c.LUA_STRLIBNAME, c.luaopen_string, true);
-        if (libs.table) lua.requireF(c.LUA_TABLIBNAME, c.luaopen_table, true);
-        if (libs.math) lua.requireF(c.LUA_MATHLIBNAME, c.luaopen_math, true);
-        if (libs.os) lua.requireF(c.LUA_OSLIBNAME, c.luaopen_os, true);
-        if (libs.debug) lua.requireF(c.LUA_DBLIBNAME, c.luaopen_debug, true);
-
-        if (lang != .luau) {
-            if (libs.io) lua.requireF(c.LUA_IOLIBNAME, c.luaopen_io, true);
-            if (libs.package) lua.requireF(c.LUA_LOADLIBNAME, c.luaopen_package, true);
-        }
-
-        if (lang != .lua51 and lang != .luajit and libs.coroutine) lua.requireF(c.LUA_COLIBNAME, c.luaopen_coroutine, true);
-
-        if ((lang == .lua53 or lang == .lua54) and libs.utf8) lua.requireF(c.LUA_UTF8LIBNAME, c.luaopen_utf8, true);
-
-        if (lang == .lua52 and libs.bit) lua.requireF(c.LUA_BITLIBNAME, c.luaopen_bit32, true);
-    }
-
     /// Open all standard libraries
     /// See https://www.lua.org/manual/5.4/manual.html#luaL_openlibs
     pub fn openLibs(lua: *Lua) void {
@@ -2988,57 +2957,57 @@ pub const Lua = struct {
 
     /// Open the basic standard library
     pub fn openBase(lua: *Lua) void {
-        _ = c.luaopen_base(lua.state);
+        lua.requireF("_G", c.luaopen_base, true);
     }
 
     /// Open the coroutine standard library
     pub fn openCoroutine(lua: *Lua) void {
-        _ = c.luaopen_coroutine(lua.state);
+        lua.requireF(c.LUA_COLIBNAME, c.luaopen_coroutine, true);
     }
 
     /// Open the package standard library
     pub fn openPackage(lua: *Lua) void {
-        _ = c.luaopen_package(lua.state);
+        lua.requireF(c.LUA_LOADLIBNAME, c.luaopen_package, true);
     }
 
     /// Open the string standard library
     pub fn openString(lua: *Lua) void {
-        _ = c.luaopen_string(lua.state);
+        lua.requireF(c.LUA_STRLIBNAME, c.luaopen_string, true);
     }
 
     /// Open the UTF-8 standard library
     pub fn openUtf8(lua: *Lua) void {
-        _ = c.luaopen_utf8(lua.state);
+        lua.requireF(c.LUA_UTF8LIBNAME, c.luaopen_utf8, true);
     }
 
     /// Open the table standard library
     pub fn openTable(lua: *Lua) void {
-        _ = c.luaopen_table(lua.state);
+        lua.requireF(c.LUA_TABLIBNAME, c.luaopen_table, true);
     }
 
     /// Open the math standard library
     pub fn openMath(lua: *Lua) void {
-        _ = c.luaopen_math(lua.state);
+        lua.requireF(c.LUA_MATHLIBNAME, c.luaopen_math, true);
     }
 
     /// Open the io standard library
     pub fn openIO(lua: *Lua) void {
-        _ = c.luaopen_io(lua.state);
+        lua.requireF(c.LUA_IOLIBNAME, c.luaopen_io, true);
     }
 
     /// Open the os standard library
     pub fn openOS(lua: *Lua) void {
-        _ = c.luaopen_os(lua.state);
+        lua.requireF(c.LUA_OSLIBNAME, c.luaopen_os, true);
     }
 
     /// Open the debug standard library
     pub fn openDebug(lua: *Lua) void {
-        _ = c.luaopen_debug(lua.state);
+        lua.requireF(c.LUA_DBLIBNAME, c.luaopen_debug, true);
     }
 
     /// Open the bit32 standard library
     pub fn openBit32(lua: *Lua) void {
-        _ = c.luaopen_bit32(lua.state);
+        lua.requireF(c.LUA_BITLIBNAME, c.luaopen_bit32, true);
     }
 
     /// Returns if given typeinfo is a string type
diff --git a/src/tests.zig b/src/tests.zig
index c86df48..c86f2af 100644
--- a/src/tests.zig
+++ b/src/tests.zig
@@ -154,22 +154,6 @@ test "standard library loading" {
         lua.openLibs();
     }
 
-    // open a subset of standard libraries with Zig wrapper
-    {
-        var lua = try Lua.init(&testing.allocator);
-        defer lua.deinit();
-
-        switch (ziglua.lang) {
-            .lua51 => lua.open(.{ .base = true, .package = true, .string = true, .table = true, .math = true, .io = true, .os = true, .debug = true }),
-            .lua52 => lua.open(.{ .base = true, .coroutine = true, .package = true, .string = true, .table = true, .math = true, .io = true, .os = true, .debug = true, .bit = true }),
-            .lua53, .lua54 => lua.open(.{ .base = true, .coroutine = true, .package = true, .string = true, .utf8 = true, .table = true, .math = true, .io = true, .os = true, .debug = true }),
-            .luau => lua.open(.{ .base = true, .coroutine = true, .string = true, .utf8 = true, .table = true, .math = true, .io = true, .os = true, .debug = true }),
-            .luajit => {
-                // TODO: why do tests crash?
-            },
-        }
-    }
-
     // open all standard libraries with individual functions
     // these functions are only useful if you want to load the standard
     // packages into a non-standard table
@@ -184,8 +168,7 @@ test "standard library loading" {
         lua.openOS();
         lua.openDebug();
 
-        // TODO: why do these fail in lua51? Debugger shows it is on line with LUA_ENVIRONINDEX
-        if (ziglua.lang != .luau and ziglua.lang != .lua51 and ziglua.lang != .luajit) {
+        if (ziglua.lang != .luau) {
             lua.openPackage();
             lua.openIO();
         }
@@ -631,7 +614,8 @@ test "global table" {
     defer lua.deinit();
 
     // open some libs so we can inspect them
-    lua.open(.{ .math = true, .base = true });
+    lua.openBase();
+    lua.openMath();
     lua.pushGlobalTable();
 
     // find the print function
@@ -1143,7 +1127,7 @@ test "closing vars" {
     var lua = try Lua.init(&testing.allocator);
     defer lua.deinit();
 
-    lua.open(.{ .base = true });
+    lua.openBase();
 
     // do setup in Lua for ease
     try lua.doString(