diff --git a/Claunia.Encoding.Tests/ATASCII.cs b/Claunia.Encoding.Tests/ATASCII.cs
index 159bc38..081520c 100644
--- a/Claunia.Encoding.Tests/ATASCII.cs
+++ b/Claunia.Encoding.Tests/ATASCII.cs
@@ -24,8 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using NUnit.Framework;
-
 namespace Claunia.Encoding.Tests;
 
 [TestFixture]
diff --git a/Claunia.Encoding.Tests/AtariST.cs b/Claunia.Encoding.Tests/AtariST.cs
index 678e350..c549610 100644
--- a/Claunia.Encoding.Tests/AtariST.cs
+++ b/Claunia.Encoding.Tests/AtariST.cs
@@ -24,7 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using NUnit.Framework;
 
 namespace Claunia.Encoding.Tests;
 
diff --git a/Claunia.Encoding.Tests/GetEncs.cs b/Claunia.Encoding.Tests/GetEncs.cs
index ee19df7..098c9c8 100644
--- a/Claunia.Encoding.Tests/GetEncs.cs
+++ b/Claunia.Encoding.Tests/GetEncs.cs
@@ -25,7 +25,6 @@
 // THE SOFTWARE.
 
 using System;
-using NUnit.Framework;
 
 namespace Claunia.Encoding.Tests;
 
diff --git a/Claunia.Encoding.Tests/Globals.cs b/Claunia.Encoding.Tests/Globals.cs
new file mode 100644
index 0000000..cefced4
--- /dev/null
+++ b/Claunia.Encoding.Tests/Globals.cs
@@ -0,0 +1 @@
+global using NUnit.Framework;
\ No newline at end of file
diff --git a/Claunia.Encoding.Tests/LisaRoman.cs b/Claunia.Encoding.Tests/LisaRoman.cs
index b33facd..d010451 100644
--- a/Claunia.Encoding.Tests/LisaRoman.cs
+++ b/Claunia.Encoding.Tests/LisaRoman.cs
@@ -24,8 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using NUnit.Framework;
-
 namespace Claunia.Encoding.Tests;
 
 [TestFixture]
diff --git a/Claunia.Encoding.Tests/Radix50.cs b/Claunia.Encoding.Tests/Radix50.cs
index 4bb751c..4c87437 100644
--- a/Claunia.Encoding.Tests/Radix50.cs
+++ b/Claunia.Encoding.Tests/Radix50.cs
@@ -24,8 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using NUnit.Framework;
-
 namespace Claunia.Encoding.Tests;
 
 [TestFixture]
diff --git a/Claunia.Encoding/ATASCII.cs b/Claunia.Encoding/ATASCII.cs
index ad96d88..c627e7c 100644
--- a/Claunia.Encoding/ATASCII.cs
+++ b/Claunia.Encoding/ATASCII.cs
@@ -24,8 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using System.Text;
-
 namespace Claunia.Encoding;
 
 /// <summary>Represents an ATARI Standard Code for Information Interchange character encoding of Unicode characters.</summary>
diff --git a/Claunia.Encoding/Apple2c.cs b/Claunia.Encoding/Apple2c.cs
index 241e738..5a91b95 100644
--- a/Claunia.Encoding/Apple2c.cs
+++ b/Claunia.Encoding/Apple2c.cs
@@ -24,8 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using System.Text;
-
 namespace Claunia.Encoding;
 
 /// <summary>Represents an Apple IIc character encoding of Unicode characters.</summary>
diff --git a/Claunia.Encoding/Apple2gs.cs b/Claunia.Encoding/Apple2gs.cs
index 8be7797..f910202 100644
--- a/Claunia.Encoding/Apple2gs.cs
+++ b/Claunia.Encoding/Apple2gs.cs
@@ -24,8 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using System.Text;
-
 namespace Claunia.Encoding;
 
 /// <summary>Represents an Apple IIgs character encoding of Unicode characters.</summary>
diff --git a/Claunia.Encoding/AtariST.cs b/Claunia.Encoding/AtariST.cs
index 2c52f50..7fbece4 100644
--- a/Claunia.Encoding/AtariST.cs
+++ b/Claunia.Encoding/AtariST.cs
@@ -24,8 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using System.Text;
-
 namespace Claunia.Encoding;
 
 /// <summary>Represents an Atari ST character encoding of Unicode characters.</summary>
diff --git a/Claunia.Encoding/GEM.cs b/Claunia.Encoding/GEM.cs
index 6cd5d54..6d46bf0 100644
--- a/Claunia.Encoding/GEM.cs
+++ b/Claunia.Encoding/GEM.cs
@@ -24,8 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using System.Text;
-
 namespace Claunia.Encoding;
 
 /// <summary>Represents a GEM character encoding of Unicode characters.</summary>
diff --git a/Claunia.Encoding/Globals.cs b/Claunia.Encoding/Globals.cs
new file mode 100644
index 0000000..cddbcd4
--- /dev/null
+++ b/Claunia.Encoding/Globals.cs
@@ -0,0 +1 @@
+global using System.Text;
\ No newline at end of file
diff --git a/Claunia.Encoding/PETSCII.cs b/Claunia.Encoding/PETSCII.cs
index a7165f6..45c5a01 100644
--- a/Claunia.Encoding/PETSCII.cs
+++ b/Claunia.Encoding/PETSCII.cs
@@ -24,8 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using System.Text;
-
 namespace Claunia.Encoding;
 
 /// <summary>
diff --git a/Claunia.Encoding/SingleByteEncodingWithRunes.cs b/Claunia.Encoding/SingleByteEncodingWithRunes.cs
index e21f8bb..8debdc9 100644
--- a/Claunia.Encoding/SingleByteEncodingWithRunes.cs
+++ b/Claunia.Encoding/SingleByteEncodingWithRunes.cs
@@ -1,7 +1,6 @@
 using System;
 using System.Globalization;
 using System.Linq;
-using System.Text;
 
 namespace Claunia.Encoding;
 
diff --git a/Claunia.Encoding/ZX80.cs b/Claunia.Encoding/ZX80.cs
index 1e31fe1..8a174db 100644
--- a/Claunia.Encoding/ZX80.cs
+++ b/Claunia.Encoding/ZX80.cs
@@ -24,8 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using System.Text;
-
 namespace Claunia.Encoding;
 
 /// <summary>Represents a ZX80 character encoding of Unicode characters.</summary>
diff --git a/Claunia.Encoding/ZX81.cs b/Claunia.Encoding/ZX81.cs
index 747c50a..d4beb1d 100644
--- a/Claunia.Encoding/ZX81.cs
+++ b/Claunia.Encoding/ZX81.cs
@@ -24,8 +24,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using System.Text;
-
 namespace Claunia.Encoding;
 
 /// <summary>Represents a ZX81 character encoding of Unicode characters.</summary>