Rename frameworks according to Cocoa convention

Deus.xcodeproj/xcshareddata/xcschemes/Deus.xcscheme

@@ -63,8 +63,8 @@
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "494EFC002DDF36B200C66063"
-               BuildableName = "RelativityKitTests.xctest"
-               BlueprintName = "RelativityKitTests"
+               BuildableName = "RelativityCoreTests.xctest"
+               BlueprintName = "RelativityCoreTests"
                ReferencedContainer = "container:Deus.xcodeproj">
             </BuildableReference>
          </TestableReference>
@@ -74,8 +74,8 @@
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "49EF5D562DE20D36008AFB31"
-               BuildableName = "QuantumMechanicsTests.xctest"
-               BlueprintName = "QuantumMechanicsTests"
+               BuildableName = "QuantumMechanicsCoreTests.xctest"
+               BlueprintName = "QuantumMechanicsCoreTests"
                ReferencedContainer = "container:Deus.xcodeproj">
             </BuildableReference>
          </TestableReference>
@@ -84,8 +84,8 @@
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "49EF5D562DE20D36008AFB31"
-               BuildableName = "QuantumMechanicsTests.xctest"
-               BlueprintName = "QuantumMechanicsTests"
+               BuildableName = "QuantumMechanicsCoreTests.xctest"
+               BlueprintName = "QuantumMechanicsCoreTests"
                ReferencedContainer = "container:Deus.xcodeproj">
             </BuildableReference>
          </TestableReference>

Deus.xcodeproj/xcshareddata/xcschemes/Geometry.xcscheme

@@ -16,8 +16,8 @@
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "4960AB472DDCE34E00EB1410"
-               BuildableName = "Geometry.framework"
-               BlueprintName = "Geometry"
+               BuildableName = "GeometryCore.framework"
+               BlueprintName = "GeometryCore"
                ReferencedContainer = "container:Deus.xcodeproj">
             </BuildableReference>
          </BuildActionEntry>
@@ -51,8 +51,8 @@
          <BuildableReference
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "4960AB472DDCE34E00EB1410"
-            BuildableName = "Geometry.framework"
-            BlueprintName = "Geometry"
+            BuildableName = "GeometryCore.framework"
+            BlueprintName = "GeometryCore"
             ReferencedContainer = "container:Deus.xcodeproj">
          </BuildableReference>
       </MacroExpansion>

Deus.xcodeproj/xcshareddata/xcschemes/GeometryTests.xcscheme

@@ -20,8 +20,8 @@
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "4960AB4F2DDCE34E00EB1410"
-               BuildableName = "GeometryTests.xctest"
-               BlueprintName = "GeometryTests"
+               BuildableName = "GeometryCoreTests.xctest"
+               BlueprintName = "GeometryCoreTests"
                ReferencedContainer = "container:Deus.xcodeproj">
             </BuildableReference>
          </TestableReference>

Deus.xcodeproj/xcshareddata/xcschemes/RelativityKit.xcscheme

@@ -16,8 +16,8 @@
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "494EFBF82DDF36B100C66063"
-               BuildableName = "RelativityKit.framework"
-               BlueprintName = "RelativityKit"
+               BuildableName = "RelativityCore.framework"
+               BlueprintName = "RelativityCore"
                ReferencedContainer = "container:Deus.xcodeproj">
             </BuildableReference>
          </BuildActionEntry>
@@ -51,8 +51,8 @@
          <BuildableReference
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "494EFBF82DDF36B100C66063"
-            BuildableName = "RelativityKit.framework"
-            BlueprintName = "RelativityKit"
+            BuildableName = "RelativityCore.framework"
+            BlueprintName = "RelativityCore"
             ReferencedContainer = "container:Deus.xcodeproj">
          </BuildableReference>
       </MacroExpansion>

Deus.xcodeproj/xcshareddata/xcschemes/RelativityKitTests.xcscheme

@@ -20,8 +20,8 @@
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "494EFC002DDF36B200C66063"
-               BuildableName = "RelativityKitTests.xctest"
-               BlueprintName = "RelativityKitTests"
+               BuildableName = "RelativityCoreTests.xctest"
+               BlueprintName = "RelativityCoreTests"
                ReferencedContainer = "container:Deus.xcodeproj">
             </BuildableReference>
          </TestableReference>

GeometryTests/2DTests.swift → GeometryCoreTests/2DTests.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import Testing
-@testable import Geometry
+@testable import GeometryCore
 
 struct TwoDTests {
   @Test

GeometryTests/BezierCurveTests.swift → GeometryCoreTests/BezierCurveTests.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import Testing
-@testable import Geometry
+@testable import GeometryCore
 
 struct BezierCurveTests {
   @Test

ObservationKit/Entity+QuarkLike.swift

@@ -19,7 +19,7 @@
 
 import AppKit
 import RealityKit
-import QuantumMechanics
+import QuantumMechanicsCore
 
 /// Shape of a quark-like: a sphere.
 @MainActor

ObservationKit/NSColor+SingleColorLike.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import AppKit
-import QuantumMechanics
+import QuantumMechanicsCore
 
 extension NSColor {
   /// Converts a color-like from the Standard Model into an `NSColor`.

ObservationKit/ObservationView.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import RealityKit
-import QuantumMechanics
+import QuantumMechanicsCore
 import SwiftUI
 
 /// `View` by which a simulation of particle physics is displayed.

ObservationKitTests/Entity+QuarkLikeTests.swift

@@ -19,7 +19,7 @@
 
 import AppKit
 @preconcurrency import RealityKit
-import QuantumMechanics
+import QuantumMechanicsCore
 import Testing
 @testable import ObservationKit
 

ObservationKitTests/NSColor+SingleColorLikeTests.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import AppKit
-import QuantumMechanics
+import QuantumMechanicsCore
 import Testing
 @testable import ObservationKit
 

QuantumMechanics/Chromodynamics/AnySingleColor.swift → QuantumMechanicsCore/Chromodynamics/AnySingleColor.swift

@@ -134,8 +134,8 @@ extension SingleColorLike {
         fatalError(
           "Anticolor \(self) has an unknown counterpart: \(self.counterpart). "
             + "Conformance to the SingleColor protocol is restricted to the "
-            + "QuantumMechanics framework; introductions of custom types will "
-            + "likely result in errors such as this one."
+            + "QuantumMechanicsCore framework; introductions of custom types "
+            + "will likely result in errors such as this one."
         )
       }
     } else {

QuantumMechanics/Chromodynamics/ColoredParticle.swift → QuantumMechanicsCore/Chromodynamics/ColoredParticle.swift

@@ -21,7 +21,7 @@
 /// conform.
 public protocol ColoredParticleLike: ParticleLike {
   /// The specific type of ``ColorLike``.
-  associatedtype ColorLike: QuantumMechanics.ColorLike
+  associatedtype ColorLike: QuantumMechanicsCore.ColorLike
 
   /// Measured transformation under the SU(3) symmetry.
   var colorLike: ColorLike { get }

QuantumMechanics/Symmetry.swift → QuantumMechanicsCore/Symmetry.swift

@@ -17,7 +17,7 @@
 // this program. If not, see https://www.gnu.org/licenses.
 // ===-----------------------------------------------------------------------===
 
-import Geometry
+import GeometryCore
 internal import Numerics
 
 // MARK: - U(1)

QuantumMechanicsTests/Anti+ParticleTests.swift → QuantumMechanicsCoreTests/Anti+ParticleTests.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import Testing
-@testable import QuantumMechanics
+@testable import QuantumMechanicsCore
 
 struct AntiparticleTests {
   @Test

QuantumMechanicsTests/Chromodynamics/Anti+ColorTests.swift → QuantumMechanicsCoreTests/Chromodynamics/Anti+ColorTests.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import Testing
-@testable import QuantumMechanics
+@testable import QuantumMechanicsCore
 
 struct AnticolorTests {
   @Test

QuantumMechanicsTests/Chromodynamics/AnySingleColorLikeTests.swift → QuantumMechanicsCoreTests/Chromodynamics/AnySingleColorLikeTests.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import Testing
-@testable import QuantumMechanics
+@testable import QuantumMechanicsCore
 
 struct AnySingleColorLikeTests {
   @Test(arguments: AnySingleColorLike.discretion)

QuantumMechanicsTests/Chromodynamics/AnySingleColorTests.swift → QuantumMechanicsCoreTests/Chromodynamics/AnySingleColorTests.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import Testing
-@testable import QuantumMechanics
+@testable import QuantumMechanicsCore
 
 struct AnySingleColorTests {
   @Suite("Equality")

QuantumMechanicsTests/Chromodynamics/RandomAccessCollection+PairTests.swift → QuantumMechanicsCoreTests/Chromodynamics/RandomAccessCollection+PairTests.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import Testing
-@testable import QuantumMechanics
+@testable import QuantumMechanicsCore
 
 @Suite("RandomAccessCollection+Pair tests")
 struct RandomAccessCollectionPairTests {

QuantumMechanicsTests/Complex+RealTypeTests.swift → QuantumMechanicsCoreTests/Complex+RealTypeTests.swift

@@ -19,7 +19,7 @@
 
 import Numerics
 import Testing
-@testable import QuantumMechanics
+@testable import QuantumMechanicsCore
 
 struct ComplexPlusRealTypeTests {
   @Test

QuantumMechanicsTests/Composite/Pion/NegativePionTests.swift → QuantumMechanicsCoreTests/Composite/Pion/NegativePionTests.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import Testing
-@testable import QuantumMechanics
+@testable import QuantumMechanicsCore
 
 struct NegativePionTests {
   private let downQuark = DownQuark(colorLike: red)

QuantumMechanicsTests/Composite/Pion/PositivePionTests.swift → QuantumMechanicsCoreTests/Composite/Pion/PositivePionTests.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import Testing
-@testable import QuantumMechanics
+@testable import QuantumMechanicsCore
 
 struct PositivePionTests {
   private let upQuark = UpQuark(colorLike: red)

QuantumMechanicsTests/Configuration/ApproximatorTests.swift → QuantumMechanicsCoreTests/Configuration/ApproximatorTests.swift

@@ -18,7 +18,7 @@
 // ===-----------------------------------------------------------------------===
 
 import Testing
-@testable import QuantumMechanics
+@testable import QuantumMechanicsCore
 
 struct ApproximatorTests {
   @Test

QuantumMechanicsCoreTests/DiscretionTests.swift

@@ -0,0 +1,114 @@
+// ===-----------------------------------------------------------------------===
+// Copyright © 2026 Supernova
+//
+// This file is part of the Deus open-source project.
+//
+// This program is free software: you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free Software
+// Foundation, either version 3 of the License, or (at your option) any later
+// version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+// details.
+//
+// You should have received a copy of the GNU General Public License along with
+// this program. If not, see https://www.gnu.org/licenses.
+// ===-----------------------------------------------------------------------===
+
+import Testing
+@testable import QuantumMechanicsCore
+
+struct AnySingleColorLikeDiscretionTests {
+  @Test(arguments: [
+    AnySingleColorLike(red), .init(Anti(red)), .init(green), .init(Anti(green)),
+    .init(blue), .init(Anti(blue))
+  ])
+  func allKnownSingleColorsAndTheirCounterpartsAreIncludedInDiscretion(
+    _ singleColorLike: AnySingleColorLike
+  ) {
+    #expect(
+      AnySingleColorLike.discretion.contains(where: { discreteSingleColorLike in
+        discreteSingleColorLike == singleColorLike
+      })
+    )
+  }
+}
+
+struct AnySingleColorDiscretionTests {
+  @Test(arguments: [AnySingleColor(red), .init(green), .init(blue)])
+  func allKnownSingleColorsAndTheirCounterpartsAreIncludedInDiscretion(
+    _ singleColor: AnySingleColor
+  ) {
+    #expect(
+      AnySingleColor.discretion.contains(where: { discreteSingleColor in
+        discreteSingleColor == singleColor
+      })
+    )
+  }
+}
+
+struct AnyQuarkLikeDiscretionTests {
+  @Test(arguments: [
+    AnyQuarkLike(UpQuark(colorLike: red)), .init(Anti(UpQuark(colorLike: red))),
+    .init(UpQuark(colorLike: green)), .init(Anti(UpQuark(colorLike: green))),
+    .init(UpQuark(colorLike: blue)), .init(Anti(UpQuark(colorLike: blue))),
+    .init(DownQuark(colorLike: red)), .init(Anti(DownQuark(colorLike: red))),
+    .init(DownQuark(colorLike: green)),
+    .init(Anti(DownQuark(colorLike: green))), .init(DownQuark(colorLike: blue)),
+    .init(Anti(DownQuark(colorLike: blue))), .init(CharmQuark(colorLike: red)),
+    .init(Anti(CharmQuark(colorLike: red))),
+    .init(CharmQuark(colorLike: green)),
+    .init(Anti(CharmQuark(colorLike: green))),
+    .init(CharmQuark(colorLike: blue)),
+    .init(Anti(CharmQuark(colorLike: blue))),
+    .init(StrangeQuark(colorLike: red)),
+    .init(Anti(StrangeQuark(colorLike: red))),
+    .init(StrangeQuark(colorLike: green)),
+    .init(Anti(StrangeQuark(colorLike: green))),
+    .init(StrangeQuark(colorLike: blue)),
+    .init(Anti(StrangeQuark(colorLike: blue))),
+    .init(BottomQuark(colorLike: red)),
+    .init(Anti(BottomQuark(colorLike: red))),
+    .init(BottomQuark(colorLike: green)),
+    .init(Anti(BottomQuark(colorLike: green))),
+    .init(BottomQuark(colorLike: blue)),
+    .init(Anti(BottomQuark(colorLike: blue))), .init(TopQuark(colorLike: red)),
+    .init(Anti(TopQuark(colorLike: red))), .init(TopQuark(colorLike: green)),
+    .init(Anti(TopQuark(colorLike: green))), .init(TopQuark(colorLike: blue)),
+    .init(Anti(TopQuark(colorLike: blue)))
+  ])
+  func allKnownQuarksAndTheirCounterpartsAreIncludedInDiscretion(
+    _ quarkLike: AnyQuarkLike
+  ) {
+    #expect(
+      AnyQuarkLike.discretion.contains(where: { discreteQuarkLike in
+        discreteQuarkLike == quarkLike
+      })
+    )
+  }
+}
+
+struct AnyQuarkDiscretionTests {
+  @Test(arguments: [
+    AnyQuark(UpQuark(colorLike: red)), .init(UpQuark(colorLike: green)),
+    .init(UpQuark(colorLike: blue)), .init(DownQuark(colorLike: red)),
+    .init(DownQuark(colorLike: green)), .init(DownQuark(colorLike: blue)),
+    .init(CharmQuark(colorLike: red)), .init(CharmQuark(colorLike: green)),
+    .init(CharmQuark(colorLike: blue)), .init(StrangeQuark(colorLike: red)),
+    .init(StrangeQuark(colorLike: green)), .init(StrangeQuark(colorLike: blue)),
+    .init(BottomQuark(colorLike: red)), .init(BottomQuark(colorLike: green)),
+    .init(BottomQuark(colorLike: blue)), .init(TopQuark(colorLike: red)),
+    .init(TopQuark(colorLike: green)), .init(TopQuark(colorLike: blue))
+  ])
+  func allKnownQuarksAndTheirCounterpartsAreIncludedInDiscretion(
+    _ quark: AnyQuark
+  ) {
+    #expect(
+      AnyQuark.discretion.contains(where: { discreteQuark in
+        discreteQuark == quark
+      })
+    )
+  }
+}

QuantumMechanicsTests/DiscretionTests.swift.gyb → QuantumMechanicsCoreTests/DiscretionTests.swift.gyb

@@ -86,7 +86,7 @@
 ${licensing.header()}
 
 import Testing
-@testable import QuantumMechanics
+@testable import QuantumMechanicsCore
 
 % for index, erasure in enumerate(erasures):
   % for opposability in ['Like', '']: