diff --git a/meson.build b/meson.build
index f5476a9..bd29da1 100644
--- a/meson.build
+++ b/meson.build
@@ -2,11 +2,28 @@ project('4DSSE', 'cpp', version: '0.0.1a', default_options: ['cpp_std=c++23'], m
 
 # Add default visibility for all C++ targets
 add_project_arguments('-fvisibility=default', language: 'cpp')
+# Determine the mode
+mode = 1
+if get_option('user_mode')
+    mode = 0
+endif
+
+# Define DATA_DIR based on mode
+if mode == 1
+    data_dir = meson.project_source_root() + '/assets/dynamic'
+else
+    data_dir = get_option('prefix') + '/' + get_option('datadir') + '/4DSSE'
+endif
+
+# Pass the DATA_DIR definition to the compiler
+add_project_arguments('-DDATA_DIR=' + data_dir, language : 'cpp')
 
 # Build external dependencies first so that all the embedded resources are available to the other targets
 subdir('build-config')
 subdir('subprojects/PicoSHA2')
 
+subdir('assets/static')
+
 # Build the main project
 subdir('src')
 if get_option('build_tests')
diff --git a/meson_options.txt b/meson_options.txt
index c3b5afd..56baeee 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1 +1,2 @@
 option('build_tests', type: 'boolean', value: true, description: 'Build tests')
+option('user_mode', type: 'boolean', value: false, description: 'Enable user mode (set mode = 0)')
diff --git a/src/eos/meson.build b/src/eos/meson.build
index ca3e18f..f9979b4 100644
--- a/src/eos/meson.build
+++ b/src/eos/meson.build
@@ -1,23 +1,34 @@
 # Define the library
 eos_sources = files(
   'private/helm.cpp',
+  'private/eosIO.cpp'
 )
 
 eos_headers = files(
-    'public/helm.h'
+    'public/helm.h',
+    'public/eosIO.h'
 )
 
+dependencies = [
+    const_dep,
+    quill_dep,
+    probe_dep,
+    config_dep,
+    mfem_dep,
+    macros_dep,
+]
 # Define the libconst library so it can be linked against by other parts of the build system
 libeos = static_library('eos',
     eos_sources, 
     include_directories: include_directories('public'),
     cpp_args: ['-fvisibility=default'],
-    dependencies: [const_dep, quill_dep, probe_dep, config_dep, mfem_dep],
+    dependencies: dependencies,
     install : true)
 
 eos_dep = declare_dependency(
     include_directories: include_directories('public'),
     link_with: libeos,
+    dependencies: dependencies
 )
 # Make headers accessible
 install_headers(eos_headers, subdir : '4DSSE/eos')
\ No newline at end of file
diff --git a/src/meshIO/meson.build b/src/meshIO/meson.build
index 1ea870a..a684138 100644
--- a/src/meshIO/meson.build
+++ b/src/meshIO/meson.build
@@ -6,14 +6,22 @@ meshIO_sources = files(
 meshIO_headers = files(
     'public/meshIO.h'
 )
-
+dependencies = [
+    mfem_dep
+]
 # Define the libmeshIO library so it can be linked against by other parts of the build system
 libmeshIO = static_library('meshIO',
     meshIO_sources, 
     include_directories: include_directories('public'),
     cpp_args: ['-fvisibility=default'],
-    dependencies: [mfem_dep],
+    dependencies: dependencies,
     install : true)
 
+meshio_dep = declare_dependency(
+    include_directories: include_directories('public'),
+    link_with: libmeshIO,
+    dependencies: dependencies
+)
+
 # Make headers accessible
 install_headers(meshIO_headers, subdir : '4DSSE/meshIO')
\ No newline at end of file
diff --git a/src/meson.build b/src/meson.build
index 3547118..d2d2399 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -1,11 +1,18 @@
-# Build resources first so that all the embedded resources are available to the other targets
-subdir('resources')
+# Build the main source code in the correct order
 
-# Build the main source code
-subdir('dobj')
-subdir('const')
-subdir('opatIO')
-subdir('meshIO')
+# Utility Libraries
+subdir('misc')
 subdir('config')
 subdir('probe')
-subdir('eos')
\ No newline at end of file
+subdir('const')
+subdir('dobj')
+
+# Asset Libraries
+subdir('eos')
+subdir('opatIO')
+subdir('meshIO')
+
+# Resouce Manager Libraries
+subdir('resource')
+
+# Physics Libraries
\ No newline at end of file
diff --git a/src/opatIO/meson.build b/src/opatIO/meson.build
index c2229bc..238ee6f 100644
--- a/src/opatIO/meson.build
+++ b/src/opatIO/meson.build
@@ -16,5 +16,9 @@ libopatIO = library('opatIO',
     install : true,
     )
 
+opatio_dep = declare_dependency(
+    include_directories: include_directories('public'),
+    link_with: libopatIO,
+)
 # Make headers accessible
 install_headers(opatIO_headers, subdir : '4DSSE/opatIO')
\ No newline at end of file
diff --git a/tests/meson.build b/tests/meson.build
index e744e20..0d89e07 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -11,6 +11,7 @@ subdir('meshIO')
 subdir('config')
 subdir('probe')
 subdir('eos')
+subdir('resource')
 
 # Subdirectories for sandbox tests
 subdir('dobj_sandbox')