Make the system

Content.Server/DeltaV/Speech/Components/GermanAccentComponent.cs

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+using Content.Server.DeltaV.Speech.EntitySystems;
+
+namespace Content.Server.DeltaV.Speech.Components;
+
+[RegisterComponent]
+[Access(typeof(GermanAccentSystem))]
+public sealed partial class GermanAccentComponent : Component
+{ }

Content.Server/DeltaV/Speech/EntitySystems/GermanAccentSystem.cs

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+using Content.Server.DeltaV.Speech.Components;
+using Content.Server.Speech;
+using Content.Server.Speech.EntitySystems;
+using System.Text.RegularExpressions;
+
+namespace Content.Server.DeltaV.Speech.EntitySystems;
+
+public sealed class GermanAccentSystem : EntitySystem
+{
+    [Dependency] private readonly ReplacementAccentSystem _replacement = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<GermanAccentComponent, AccentGetEvent>(OnAccentGet);
+    }
+
+    // converts left word when typed into the right word. For example typing you becomes ye.
+    public string Accentuate(string message, GermanAccentComponent component)
+    {
+        var msg = message;
+
+        msg = _replacement.ApplyReplacements(msg, "german");
+
+        return msg;
+    }
+
+    private void OnAccentGet(EntityUid uid, GermanAccentComponent component, AccentGetEvent args)
+    {
+        args.Message = Accentuate(args.Message, component);
+    }
+}