diff --git a/crates/lune-std-ffi/README.md b/crates/lune-std-ffi/README.md
index 4470901c..c5fa3c8a 100644
--- a/crates/lune-std-ffi/README.md
+++ b/crates/lune-std-ffi/README.md
@@ -6,14 +6,10 @@ See [tests/ffi](../../tests/ffi/README.md)
 
 ## TODO
 
+- Rewrite error messages
 - Deref
-
-- Big endianness / Little endianness variable (On process.endianness)
-
 - CString
-
 - Add buffer for owned data support
-
 - Add math operation.
 
   > Provide related methods: `CTypeInfo:add(target, from1, from2, ...)` and `:sub` `:mul` `:div` `:mod` `:pow` `:max` `:min` `:gt` `:lt`  
@@ -28,9 +24,7 @@ See [tests/ffi](../../tests/ffi/README.md)
   > For windows API
 
 - Add varargs support
-
 - Array argument in cfn
-
 - Ref boundary fix
 
 ## Code structure
diff --git a/tests/ffi/benchmark/external_call/init.luau b/tests/ffi/benchmark/external_call/init.luau
index 64e86001..3c4eef6c 100644
--- a/tests/ffi/benchmark/external_call/init.luau
+++ b/tests/ffi/benchmark/external_call/init.luau
@@ -2,8 +2,8 @@ local ffi = require("@lune/ffi")
 local c = ffi.c
 
 local proc_clock = require("../../utility/proc_clock")
-local before, after = proc_clock.new_box()
-local get_clock = proc_clock.get_clock
+local before, after = proc_clock.newBox()
+local get_clock = proc_clock.getClock
 
 local testdir = "./tests/ffi/benchmark/external_call"
 local compile = require("../../utility/compile")
@@ -26,7 +26,7 @@ local function bench_add(bench_scale: number)
 		add_callable(a, a_ref, delta_ref)
 	end
 	get_clock(after)
-	print(proc_clock.get_offset(before, after))
+	print(proc_clock.getOffset(before, after))
 
 	local result = c.int:readData(a)
 	assert(result == bench_scale, `bench_add failed. result expected {bench_scale}, got {result}`)
diff --git a/tests/ffi/external_closure/init.luau b/tests/ffi/external_closure/init.luau
index f36b0340..f442b9e4 100644
--- a/tests/ffi/external_closure/init.luau
+++ b/tests/ffi/external_closure/init.luau
@@ -6,35 +6,47 @@ local compile = require("../utility/compile")
 compile(`{testdir}/lib.c`, `{testdir}/lib.so`)
 local lib = ffi.open(`{testdir}/lib.so`)
 
-local function test_closure()
-	local callback_info = c.fn({ c.int, c.int }, c.int)
-	local callback_closure = callback_info:closure(function(ret, a, b)
+local function test_callClosure()
+	local closureInfo = c.fn({ c.int, c.int }, c.int)
+	local closure = closureInfo:closure(function(ret, a, b)
 		c.int:writeData(ret, c.int:readData(a) + c.int:readData(b))
 	end)
 
-	local closure_test_info = c.fn({ callback_info }, c.int)
+	local callClosure = c.fn({ closureInfo }, c.int):callable(lib:find("call_closure"))
 
-	local closure_test_callable = closure_test_info:callable(lib:find("closure"))
-
-	local result_box = ffi.box(c.int.size)
-	closure_test_callable(result_box, callback_closure:ref())
-	local result = c.int:readData(result_box)
-	assert(result == 72, `test_closure failed. result expected 20000, got {result}`)
+	local resultBox = ffi.box(c.int.size)
+	callClosure(resultBox, closure:ref())
+	local result = c.int:readData(resultBox)
+	assert(result == 72, `test_callClosure failed. result expected 20000, got {result}`)
 end
 
-test_closure()
+test_callClosure()
 
-local function test_hello_world()
-	local callback_info = c.fn({}, c.void)
-	local callback_closure = callback_info:closure(function()
+local function test_helloWorld()
+	local helloWorldInfo = c.fn({}, c.void)
+	local helloWorld = helloWorldInfo:closure(function()
 		print("Hello world in lua closure!")
 	end)
 
-	local closure_test_info = c.fn({ callback_info }, c.void)
+	local callHelloWorld = c.fn({ helloWorldInfo }, c.void):callable(lib:find("call_hello_world"))
+	callHelloWorld(nil, helloWorld:ref())
+end
+
+test_helloWorld()
+
+local function test_closureWithPointer()
+	local closureWithPointerInfo = c.fn({ c.int, c.int:ptr() }, c.int)
+	local closureWithPointer = closureWithPointerInfo:closure(function(returnRef, aRef, bRef)
+		c.int:writeData(returnRef, c.int:readData(aRef) + c.int:readData(bRef:deref()))
+	end)
 
-	local closure_test_callable = closure_test_info:callable(lib:find("hello_world"))
+	local callClosureWithPointer = c.fn({ closureWithPointerInfo }, c.int)
+		:callable(lib:find("call_closure_with_pointer"))
 
-	closure_test_callable(nil, callback_closure:ref())
+	local resultBox = ffi.box(c.int.size)
+	callClosureWithPointer(resultBox, closureWithPointer:ref())
+	local result = c.int:readData(resultBox)
+	assert(result == 72, `test_closureWithPointer failed. result expected 20000, got {result}`)
 end
 
-test_hello_world()
+test_closureWithPointer()
diff --git a/tests/ffi/external_closure/lib.c b/tests/ffi/external_closure/lib.c
index f14f1002..a5e7a775 100644
--- a/tests/ffi/external_closure/lib.c
+++ b/tests/ffi/external_closure/lib.c
@@ -1,12 +1,17 @@
 #include<stdio.h>
 
-typedef int (*lua_callback_t)(int, int);
-typedef void (*lua_hello_world_callback_t)();
-
-int closure(lua_callback_t lua_closure) {
+typedef int (*lua_closure_t)(int, int);
+int call_closure(lua_closure_t lua_closure) {
     return lua_closure(12, 24) * 2;
 }
 
-void hello_world(lua_hello_world_callback_t lua_closure) {
+typedef void (*lua_hello_world_t)();
+void call_hello_world(lua_hello_world_t lua_closure) {
     lua_closure();
 }
+
+typedef int (*lua_closure_with_pointer_t)(int, int*);
+int call_closure_with_pointer(lua_closure_with_pointer_t lua_closure) {
+    int b = 24;
+    return lua_closure(12, &b) * 2;
+}
diff --git a/tests/ffi/external_math/init.luau b/tests/ffi/external_math/init.luau
index fe486b91..f4ce95ff 100644
--- a/tests/ffi/external_math/init.luau
+++ b/tests/ffi/external_math/init.luau
@@ -6,36 +6,32 @@ local compile = require("../utility/compile")
 compile(`{testdir}/lib.c`, `{testdir}/lib.so`)
 local lib = ffi.open(`{testdir}/lib.so`)
 
-local function test_add_int()
-	local add_int_info = c.fn({ c.int, c.int }, c.int)
+local function test_addInt()
+	local addInt = c.fn({ c.int, c.int }, c.int):callable(lib:find("add_int"))
 
-	local add_int_callable = add_int_info:callable(lib:find("add_int"))
-
-	local result_box = ffi.box(c.int.size)
+	local resultBox = ffi.box(c.int.size)
 	local arg1 = c.int:box(100)
 	local arg2 = c.int:box(200)
 
-	add_int_callable(result_box, arg1:ref(), arg2:ref())
-	local result = c.int:readData(result_box)
+	addInt(resultBox, arg1:ref(), arg2:ref())
+	local result = c.int:readData(resultBox)
 
-	assert(result == 300, `add_int failed. result expected 300, got {result}`)
+	assert(result == 300, `test_addInt failed. result expected 300, got {result}`)
 end
 
-test_add_int()
-
-local function test_mul_int()
-	local mul_int = c.fn({ c.int, c.int }, c.int)
+test_addInt()
 
-	local mul_int_caller = mul_int:callable(lib:find("mul_int"))
+local function test_mulInt()
+	local mulInt = c.fn({ c.int, c.int }, c.int):callable(lib:find("mul_int"))
 
 	local resultBox = ffi.box(c.int.size)
 	local arg1 = c.int:box(100)
 	local arg2 = c.int:box(200)
 
-	mul_int_caller(resultBox, arg1:ref(), arg2:ref())
+	mulInt(resultBox, arg1:ref(), arg2:ref())
 	local result = c.int:readData(resultBox)
 
-	assert(result == 20000, `mul_int failed. result expected 20000, got {result}`)
+	assert(result == 20000, `test_mulInt failed. result expected 20000, got {result}`)
 end
 
-test_mul_int()
+test_mulInt()
diff --git a/tests/ffi/external_pointer/init.luau b/tests/ffi/external_pointer/init.luau
index a78f7676..8e0e988f 100644
--- a/tests/ffi/external_pointer/init.luau
+++ b/tests/ffi/external_pointer/init.luau
@@ -6,18 +6,15 @@ local compile = require("../utility/compile")
 compile(`{testdir}/lib.c`, `{testdir}/lib.so`)
 local lib = ffi.open(`{testdir}/lib.so`)
 
-local function test_pointer_write()
-	local pointer_write_info = c.fn({ c.int:ptr() }, c.void)
+local function test_pointerWrite()
+	local pointerWrite = c.fn({ c.int:ptr() }, c.void):callable(lib:find("pointer_write"))
 
-	local pointer_write_callable = pointer_write_info:callable(lib:find("pointer_write"))
+	local aBox = ffi.box(c.int.size)
+	pointerWrite(nil, aBox:ref():ref())
 
-	local a = ffi.box(c.int.size)
-
-	pointer_write_callable(nil, a:ref():ref())
-
-	local result = c.int:readData(a)
+	local result = c.int:readData(aBox)
 
 	assert(result == 123, `pointer failed. result expected 123, got {result}`)
 end
 
-test_pointer_write()
+test_pointerWrite()
diff --git a/tests/ffi/external_struct/init.luau b/tests/ffi/external_struct/init.luau
index d3ae98ab..109ff491 100644
--- a/tests/ffi/external_struct/init.luau
+++ b/tests/ffi/external_struct/init.luau
@@ -7,19 +7,19 @@ compile(`{testdir}/lib.c`, `{testdir}/lib.so`)
 local lib = ffi.open(`{testdir}/lib.so`)
 
 local function test_AB()
-	local ArgStruct = c.struct({ c.int, c.int:ptr() })
-	local ResultStruct = c.struct({ c.int, c.int })
+	local argStructInfo = c.struct({ c.int, c.int:ptr() })
+	local resultStructInfo = c.struct({ c.int, c.int })
 
-	local AB = c.fn({ ArgStruct }, ResultStruct)
+	local AB = c.fn({ argStructInfo }, resultStructInfo)
 
 	local AB_callable = AB:callable(lib:find("AB"))
 
-	local resultBox = ffi.box(ResultStruct.size)
+	local resultBox = ffi.box(resultStructInfo.size)
 	local b = c.int:box(200)
-	local arg = ArgStruct:box({ 100, b:ref() })
+	local argStruct = argStructInfo:box({ 100, b:ref() })
 
-	AB_callable(resultBox, arg:ref())
-	local result = ResultStruct:readData(resultBox)
+	AB_callable(resultBox, argStruct:ref())
+	local result = resultStructInfo:readData(resultBox)
 
 	assert(result[1] == 300, `AB failed. result expected 300, got {result[1]}`)
 	assert(result[2] == 20000, `AB failed. result expected 300, got {result[2]}`)
diff --git a/tests/ffi/external_struct/lib.c b/tests/ffi/external_struct/lib.c
index a9e076b9..b542d5d3 100644
--- a/tests/ffi/external_struct/lib.c
+++ b/tests/ffi/external_struct/lib.c
@@ -9,6 +9,6 @@ typedef struct {
 } ResultStruct;
 
 ResultStruct AB(ArgStruct t) {
-    ResultStruct result = { t.a+*t.b, t.a**t.b };
+    ResultStruct result = { t.a+ * t.b, t.a * (*t.b) };
     return result;
 }
diff --git a/tests/ffi/utility/proc_clock/init.luau b/tests/ffi/utility/proc_clock/init.luau
index 40744667..720cbd6a 100644
--- a/tests/ffi/utility/proc_clock/init.luau
+++ b/tests/ffi/utility/proc_clock/init.luau
@@ -2,10 +2,10 @@
 
 local ffi = require("@lune/ffi")
 local process = require("@lune/process")
-local is_windows = process.os == "windows"
+local isWindows = process.os == "windows"
 local c = ffi.c
 
-local proc_clock = {}
+local procClock = {}
 
 local libdir = "./tests/ffi/utility/proc_clock"
 local compile = require("../compile")
@@ -13,17 +13,17 @@ compile(`{libdir}/lib.c`, `{libdir}/lib.so`)
 local lib = ffi.open(`{libdir}/lib.so`)
 
 -- sizeof_clock
-local sizeof_clock = c.fn({}, c.int):callable(lib:find("sizeof_clock"))
-function proc_clock.sizeof_clock(): number
+local sizeofClock = c.fn({}, c.int):callable(lib:find("sizeof_clock"))
+function procClock.sizeofClock(): number
 	local result = ffi.box(c.int.size)
-	sizeof_clock(result)
+	sizeofClock(result)
 	return c.int:readData(result)
 end
 -- get_clock
-local clock_t = if is_windows then ffi.f32 else ffi["u" .. (proc_clock.sizeof_clock() * 8)]
+local clock_t = if isWindows then ffi.f32 else ffi["u" .. (procClock.sizeofClock() * 8)]
 assert(clock_t, "clock_t is unknown type")
-proc_clock.get_clock = (
-	if is_windows
+procClock.getClock = (
+	if isWindows
 		then function(clock: ffi.BoxData | ffi.RefData)
 			ffi.f32:writeData(clock, os.clock())
 		end
@@ -31,19 +31,19 @@ proc_clock.get_clock = (
 ) :: (ffi.BoxData | ffi.RefData) -> ()
 
 -- get_offset
-local get_offset: (ffi.BoxData, ffi.RefData, ffi.RefData) -> () = if is_windows
+local getOffset: (ffi.BoxData, ffi.RefData, ffi.RefData) -> () = if isWindows
 	then function(result: ffi.BoxData, before: ffi.RefData, after: ffi.RefData)
 		ffi.f64:writeData(result, (ffi.f32:readData(after) - ffi.f32:readData(before)))
 	end
 	else c.fn({ clock_t, clock_t }, ffi.f64):callable(lib:find("get_offset"))
-function proc_clock.get_offset(before: ffi.BoxData, after: ffi.BoxData): number
+function procClock.getOffset(before: ffi.BoxData, after: ffi.BoxData): number
 	local result = ffi.box(ffi.f64.size)
-	get_offset(result, before:ref(), after:ref())
+	getOffset(result, before:ref(), after:ref())
 	return ffi.f64:readData(result)
 end
 
-function proc_clock.new_box(): (ffi.BoxData, ffi.BoxData)
+function procClock.newBox(): (ffi.BoxData, ffi.BoxData)
 	return ffi.box(clock_t.size), ffi.box(clock_t.size)
 end
 
-return proc_clock
+return procClock