diff --git a/meson.build b/meson.build
index 329c8bd..35ea99f 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project('seldon', 'cpp',
   version : '0.1',
-  default_options : ['warning_level=3', 'cpp_std=c++20', ])
+  default_options : ['warning_level=3', 'cpp_std=c++20', 'optimization=3'])
 
 add_global_arguments('-Wno-unused-local-typedefs', language : 'cpp')
 
@@ -13,11 +13,11 @@ exe = executable('robbie', 'main.cpp',
   )
 
 tests = [
-  # ['Test_ActivationFunctions', 'test/test_activation_functions.cpp'],
-  # ['Test_LossFunctions', 'test/test_loss_functions.cpp'],
-  # ['Test_FullyConnectedLayer', 'test/test_fc_layer.cpp'],
+  ['Test_ActivationFunctions', 'test/test_activation_functions.cpp'],
+  ['Test_LossFunctions', 'test/test_loss_functions.cpp'],
+  ['Test_FullyConnectedLayer', 'test/test_fc_layer.cpp'],
   ['Test_XOR', 'test/test_xor.cpp'],
-  # ['Test_BackwardPropagations', 'test/test_backward_propagations.cpp'],
+  ['Test_BackwardPropagations', 'test/test_backward_propagations.cpp'],
 ]
 
 Catch2 = dependency('Catch2', method : 'cmake', modules : ['Catch2::Catch2WithMain', 'Catch2::Catch2'])
@@ -31,13 +31,13 @@ foreach t : tests
 endforeach
 
 
-# examples = [
-#   ['mnist', ['examples/mnist/main.cpp', 'examples/mnist/mnist_loader.cpp']]
-# ]
+examples = [
+  ['mnist', ['examples/mnist/main.cpp', 'examples/mnist/mnist_loader.cpp']]
+]
 
-# foreach e : examples
-#   exe = executable(e.get(0), e.get(1), 
-#     dependencies : [dependency('fmt')], 
-#     include_directories :  ['examples' / e.get(0), incdir]
-#     )
-# endforeach
+foreach e : examples
+  exe = executable(e.get(0), e.get(1), 
+    dependencies : [dependency('fmt')], 
+    include_directories :  ['examples' / e.get(0), incdir]
+    )
+endforeach