diff --git a/Sources/SpectroCore/EnergyAxis.swift b/Sources/SpectroCore/EnergyAxis.swift
index bd0dea5..57f1944 100644
--- a/Sources/SpectroCore/EnergyAxis.swift
+++ b/Sources/SpectroCore/EnergyAxis.swift
@@ -26,7 +26,6 @@ public nonisolated struct EnergyAxis: Equatable, Sendable {
     /// Channel width, keV (> 0).
     public let scale: Double
     public let size: Int
-    package var units: String { "keV" }
 
     public init(offset: Double, scale: Double, size: Int) {
         // DEVIATION: hyperspy also handles a negative scale (its rounding branch
diff --git a/Sources/SpectroCore/Statistics/CountingInterval.swift b/Sources/SpectroCore/Statistics/CountingInterval.swift
index 2d3b664..03cfcee 100644
--- a/Sources/SpectroCore/Statistics/CountingInterval.swift
+++ b/Sources/SpectroCore/Statistics/CountingInterval.swift
@@ -38,7 +38,6 @@ package nonisolated struct CountingInterval: Equatable, Sendable {
         return CountingInterval(count: n, lower: lower, upper: upper, confidence: confidence)
     }
 
-    package var width: Double { upper - lower }
     package func contains(_ mean: Double) -> Bool { mean >= lower && mean <= upper }
 
     /// The same interval shrunk about the observed count by `factor` (0.5 =
diff --git a/Sources/SpectroEDX/Fit/Continuum.swift b/Sources/SpectroEDX/Fit/Continuum.swift
index 2671ee7..83ea2f1 100644
--- a/Sources/SpectroEDX/Fit/Continuum.swift
+++ b/Sources/SpectroEDX/Fit/Continuum.swift
@@ -108,8 +108,6 @@ public nonisolated struct ContinuumForm: Sendable, Equatable {
         self.efficiency = efficiency; self.edgeStep = edgeStep
     }
 
-    package var coefficientCount: Int { orders.reduce(0) { $0 + $1 + 1 } }
-
     /// The basis columns over `energies` (ascending, the fitted channels). A coefficient with no
     /// support (an empty segment) is not produced. `names` label them for the result.
     /// `resolutionMnKaEV`: the detector resolution that broadens each edge step (the line model's). nil, or `edgeStep == .sharp`,
diff --git a/Sources/SpectroEDX/Method/QuantificationMethod.swift b/Sources/SpectroEDX/Method/QuantificationMethod.swift
index cb67bec..815bc87 100644
--- a/Sources/SpectroEDX/Method/QuantificationMethod.swift
+++ b/Sources/SpectroEDX/Method/QuantificationMethod.swift
@@ -38,8 +38,6 @@ public nonisolated struct QuantificationMethod: Codable, Equatable, Sendable {
     /// efficiency; unvalidated) or typed with its source. No zeta in the menu.
     public enum KFactorSource: String, CaseIterable, Codable, Sendable {
         case computed
-        /// The name the room used before the addendum replaced Brown-Powell; same value as `computed`.
-        package static var brownPowell: KFactorSource { .computed }
         case typed
     }
 
diff --git a/Sources/SpectroEDX/Proposer/ProposalRules.swift b/Sources/SpectroEDX/Proposer/ProposalRules.swift
index 8a44ff1..6306423 100644
--- a/Sources/SpectroEDX/Proposer/ProposalRules.swift
+++ b/Sources/SpectroEDX/Proposer/ProposalRules.swift
@@ -23,14 +23,6 @@ import Foundation
 public nonisolated struct ProposalRules: Equatable, Sendable {
     public enum Rule: String, Sendable, CaseIterable {
         case hygiene = "R1", corroboration = "R2", release = "R3"
-        /// Plain words, as the row's hover and the notes say them.
-        package var title: String {
-            switch self {
-            case .hygiene: return "hygiene"
-            case .corroboration: return "L/M corroboration"
-            case .release: return "sum-peak release"
-            }
-        }
     }
 
     public var hygiene: Bool
diff --git a/Sources/SpectroEDX/Quant/BoteSalvatCrossSection.swift b/Sources/SpectroEDX/Quant/BoteSalvatCrossSection.swift
index 3e0a970..f46e5c1 100644
--- a/Sources/SpectroEDX/Quant/BoteSalvatCrossSection.swift
+++ b/Sources/SpectroEDX/Quant/BoteSalvatCrossSection.swift
@@ -34,7 +34,6 @@
 import Foundation
 
 package nonisolated struct BoteSalvatCrossSection: IonisationCrossSection {
-    package static let shellNames = ["K", "L1", "L2", "L3", "M1", "M2", "M3", "M4", "M5"]
     private static let bohrRadiusCm = 5.291772083e-11 * 100
     private static let restMassEV = 8.1871047e-14 / 1.60217653e-19
     private static let fourPiA0Sq = 4 * Double.pi * bohrRadiusCm * bohrRadiusCm
@@ -66,13 +65,6 @@ package nonisolated struct BoteSalvatCrossSection: IonisationCrossSection {
         self.init(tableA: try read("SalvatXionA.csv"), tableB: try read("SalvatXionB.csv"), edges: try read("xionUis.csv"))
     }
 
-    package static func bundled(in bundle: Bundle? = nil) -> BoteSalvatCrossSection? {
-        let bundle = bundle ?? .module   // SpectroKit's own copy (Resources/Spectroscopy); an app may pass its own bundle
-        guard let url = bundle.url(forResource: "xionUis", withExtension: "csv", subdirectory: "Spectroscopy")
-            ?? bundle.url(forResource: "xionUis", withExtension: "csv") else { return nil }
-        return try? BoteSalvatCrossSection(directory: url.deletingLastPathComponent())
-    }
-
     /// Ionisation energy (eV) of `shell` (0 = K, 1 = L1, ...), nil if untabulated.
     package func edgeEV(z: Int, shell: Int) -> Double? {
         guard let u = uis[z], u.indices.contains(shell) else { return nil }
diff --git a/Sources/SpectroEDX/Quant/EDXQuantification.swift b/Sources/SpectroEDX/Quant/EDXQuantification.swift
index 2ecf8e7..204c359 100644
--- a/Sources/SpectroEDX/Quant/EDXQuantification.swift
+++ b/Sources/SpectroEDX/Quant/EDXQuantification.swift
@@ -27,7 +27,6 @@
 //
 
 import Foundation
-import SpectroCore
 
 /// Which quantification method, with its factors in the order of `EDXQuantificationSetup.elements`.
 public nonisolated enum EDXQuantificationMethod: Sendable, Equatable {
diff --git a/Sources/SpectroEDX/Quant/KrauseFluorescenceYield.swift b/Sources/SpectroEDX/Quant/KrauseFluorescenceYield.swift
index c628e91..69fd6fa 100644
--- a/Sources/SpectroEDX/Quant/KrauseFluorescenceYield.swift
+++ b/Sources/SpectroEDX/Quant/KrauseFluorescenceYield.swift
@@ -39,13 +39,6 @@ package nonisolated struct KrauseFluorescenceYield: FluorescenceYield {
 
     package init(contentsOf url: URL) throws { self.init(csv: try String(contentsOf: url, encoding: .utf8)) }
 
-    package static func bundled(in bundle: Bundle? = nil) -> KrauseFluorescenceYield? {
-        let bundle = bundle ?? .module   // SpectroKit's own copy (Resources/Spectroscopy); an app may pass its own bundle
-        guard let url = bundle.url(forResource: "Krause1979", withExtension: "csv", subdirectory: "Spectroscopy")
-            ?? bundle.url(forResource: "Krause1979", withExtension: "csv") else { return nil }
-        return try? KrauseFluorescenceYield(contentsOf: url)
-    }
-
     package func omegaK(z: Int) -> Double? { omegaK[z] }
 
     package func omega(element: String, line: String) -> Double? {
diff --git a/Sources/SpectroEDX/Quant/MassAbsorption.swift b/Sources/SpectroEDX/Quant/MassAbsorption.swift
index ca4d309..4f2846c 100644
--- a/Sources/SpectroEDX/Quant/MassAbsorption.swift
+++ b/Sources/SpectroEDX/Quant/MassAbsorption.swift
@@ -64,14 +64,6 @@ package nonisolated struct MassAbsorptionTable: Sendable {
         self.init(csv: try String(contentsOf: url, encoding: .utf8), stripSentinel: stripSentinel)
     }
 
-    /// The copy shipped in the app bundle (Resources/Spectroscopy/FFastMAC.csv).
-    package static func bundled(in bundle: Bundle? = nil) -> MassAbsorptionTable? {
-        let bundle = bundle ?? .module   // SpectroKit's own copy (Resources/Spectroscopy); an app may pass its own bundle
-        guard let url = bundle.url(forResource: "FFastMAC", withExtension: "csv", subdirectory: "Spectroscopy")
-            ?? bundle.url(forResource: "FFastMAC", withExtension: "csv") else { return nil }
-        return try? MassAbsorptionTable(contentsOf: url)
-    }
-
     package func hasElement(_ symbol: String) -> Bool {
         QuantElementData.entry(symbol).map { curves[$0.z] != nil } ?? false
     }
diff --git a/Sources/SpectroEELS/EELSMLLS.swift b/Sources/SpectroEELS/EELSMLLS.swift
index 86b1a21..2c3a813 100644
--- a/Sources/SpectroEELS/EELSMLLS.swift
+++ b/Sources/SpectroEELS/EELSMLLS.swift
@@ -175,14 +175,14 @@ public enum EELSMLLS {
         try coreLoss.counts.withUnsafeBufferPointer { counts in
             nonisolated(unsafe) let input = counts
             try EELSParallel.forEachPixel(count: np, cancelled: cancelled, progress: progress) { p in
-                if let mask, !mask[p] { slots.set(p, failed(.masked, references: options.references.count, edges: m)); return }
-                guard let r = exponents[p] else { slots.set(p, failed(.fitFailed, references: options.references.count, edges: m)); return }
+                if let mask, !mask[p] { slots.set(p, failed(.masked)); return }
+                guard let r = exponents[p] else { slots.set(p, failed(.fitFailed)); return }
                 let y = Array(UnsafeBufferPointer(start: input.baseAddress! + p * n + window.lowerBound, count: window.count))
                 var columns: [[Double]] = [logE.map { exp(-r * $0) * basis.scale }]
                 for g in 0 ..< m { columns.append(basis.column(group: g, pixel: p, rows: window)) }
                 columns.append(contentsOf: refColumns)
                 guard let s = solve(columns: columns, y: y) else {
-                    slots.set(p, failed(.fitFailed, references: options.references.count, edges: m)); return
+                    slots.set(p, failed(.fitFailed)); return
                 }
                 let dof = window.count - k
                 func amplitude(_ j: Int) -> EELSAmplitude { EELSAmplitude(value: s.x[j], standardError: s.standardError[j]) }
@@ -198,7 +198,7 @@ public enum EELSMLLS {
             convolved: basis.convolved, methodName: methodName, validation: "none", basis: basis, references: options.references)
     }
 
-    private static func failed(_ why: EELSUnavailable, references: Int, edges: Int) -> EELSMLLSPixel {
+    private static func failed(_ why: EELSUnavailable) -> EELSMLLSPixel {
         EELSMLLSPixel(background: nil, exponent: nil, intensities: [], references: [], residualSumOfSquares: nil, degreesOfFreedom: 0, unavailable: why)
     }
 
diff --git a/Sources/SpectroEELS/EELSSpectrumImage.swift b/Sources/SpectroEELS/EELSSpectrumImage.swift
index f9ad726..1ba5ccf 100644
--- a/Sources/SpectroEELS/EELSSpectrumImage.swift
+++ b/Sources/SpectroEELS/EELSSpectrumImage.swift
@@ -6,7 +6,6 @@
 //
 
 import Foundation
-import SpectroCore
 
 /// A spectrum image on a uniform energy axis: `counts[(y * nx + x) * channels + c]`, channel `c` at `energyOffsetEV + energyScaleEV * c`.
 /// `LowLossSpectrumImage` and `CoreLossSpectrumImage` conform; the initialiser validates as theirs do (finite counts, scale > 0).
diff --git a/Sources/SpectroEELS/PowerLawBackground.swift b/Sources/SpectroEELS/PowerLawBackground.swift
index 3e309f8..59dcc2d 100644
--- a/Sources/SpectroEELS/PowerLawBackground.swift
+++ b/Sources/SpectroEELS/PowerLawBackground.swift
@@ -11,7 +11,6 @@
 //
 
 import Foundation
-import SpectroCore
 
 package nonisolated struct PowerLawWindow: Sendable, Equatable {
     package let i1: Int, i2: Int, i3: Int
diff --git a/Tests/SpectroCoreTests/DM4VolumeGoneTests.swift b/Tests/SpectroCoreTests/DM4VolumeGoneTests.swift
index cd5e356..71699ee 100644
--- a/Tests/SpectroCoreTests/DM4VolumeGoneTests.swift
+++ b/Tests/SpectroCoreTests/DM4VolumeGoneTests.swift
@@ -1,6 +1,5 @@
 import Foundation
 import Testing
-import SpectroCore
 import FormatoDM
 
 /// A DM4 whose disk has been
diff --git a/Tests/SpectroCoreTests/VeloxElementSelectionTests.swift b/Tests/SpectroCoreTests/VeloxElementSelectionTests.swift
index b8402d3..86f8864 100644
--- a/Tests/SpectroCoreTests/VeloxElementSelectionTests.swift
+++ b/Tests/SpectroCoreTests/VeloxElementSelectionTests.swift
@@ -1,6 +1,5 @@
 import Foundation
 import Testing
-import SpectroCore
 import FormatoEMD
 
 /// Velox's own element selection, read from the file (`VeloxEMDReader.storedElementSelection`).
diff --git a/Tests/SpectroEDXTests/AxisGateTests.swift b/Tests/SpectroEDXTests/AxisGateTests.swift
index 51fa3ee..10cf827 100644
--- a/Tests/SpectroEDXTests/AxisGateTests.swift
+++ b/Tests/SpectroEDXTests/AxisGateTests.swift
@@ -158,8 +158,6 @@ struct AxisGateTests {
 
     // MARK: E3
 
-    private struct CalRow { let cell: [String: Any]; let counts: [Double] }
-
     private func calibrationRows() -> [(id: String, delta: Double, gain: Double, r: Double, nAl: Double, real: Int, trueOffset: Double, trueScale: Double, counts: [Double])] {
         let cal = EDXFixtures.calibration
         let nwin = cal.i("nwin"), k0 = cal.i("k0")
diff --git a/Tests/SpectroEDXTests/CountsGateTests.swift b/Tests/SpectroEDXTests/CountsGateTests.swift
index 851c6f2..625bb7d 100644
--- a/Tests/SpectroEDXTests/CountsGateTests.swift
+++ b/Tests/SpectroEDXTests/CountsGateTests.swift
@@ -14,7 +14,6 @@ import Foundation
 import Testing
 import SpectroTestSupport
 import SpectroCore
-import SpectroEDX
 import FormatoEMD
 
 struct CountsGateTests {
diff --git a/Tests/SpectroEDXTests/DemoEDXAutoIDPinTests.swift b/Tests/SpectroEDXTests/DemoEDXAutoIDPinTests.swift
index 08e0d4c..7f0459b 100644
--- a/Tests/SpectroEDXTests/DemoEDXAutoIDPinTests.swift
+++ b/Tests/SpectroEDXTests/DemoEDXAutoIDPinTests.swift
@@ -1,6 +1,5 @@
 import Foundation
 import Testing
-import SpectroTestSupport
 import SpectroCore
 import SpectroEDX
 
diff --git a/Tests/SpectroEDXTests/DemoEDXAutoIDTests.swift b/Tests/SpectroEDXTests/DemoEDXAutoIDTests.swift
index d91c829..5869ec9 100644
--- a/Tests/SpectroEDXTests/DemoEDXAutoIDTests.swift
+++ b/Tests/SpectroEDXTests/DemoEDXAutoIDTests.swift
@@ -1,6 +1,5 @@
 import Foundation
 import Testing
-import SpectroTestSupport
 import SpectroCore
 import SpectroEDX
 
diff --git a/Tests/SpectroEDXTests/QuantificationMethodTests.swift b/Tests/SpectroEDXTests/QuantificationMethodTests.swift
index ffe486e..ad830d9 100644
--- a/Tests/SpectroEDXTests/QuantificationMethodTests.swift
+++ b/Tests/SpectroEDXTests/QuantificationMethodTests.swift
@@ -6,7 +6,6 @@
 //
 import Foundation
 import Testing
-import SpectroCore
 import SpectroEDX
 
 @MainActor
diff --git a/Tests/SpectroEDXTests/SpectroscopyComputedKTests.swift b/Tests/SpectroEDXTests/SpectroscopyComputedKTests.swift
index 87fe936..e665b96 100644
--- a/Tests/SpectroEDXTests/SpectroscopyComputedKTests.swift
+++ b/Tests/SpectroEDXTests/SpectroscopyComputedKTests.swift
@@ -1,7 +1,6 @@
 import Foundation
 import Testing
 import SpectroTestSupport
-import SpectroCore
 import SpectroEDX
 
 /// WP3 lane K round 2: computed k from NIST EPQ data (Bote-Salvat 2008 sigma, Krause 1979 omega,
diff --git a/Tests/SpectroEDXTests/SpectroscopyQuantTests.swift b/Tests/SpectroEDXTests/SpectroscopyQuantTests.swift
index 8577534..54c545f 100644
--- a/Tests/SpectroEDXTests/SpectroscopyQuantTests.swift
+++ b/Tests/SpectroEDXTests/SpectroscopyQuantTests.swift
@@ -1,7 +1,6 @@
 import Foundation
 import Testing
 import SpectroTestSupport
-import SpectroCore
 import SpectroEDX
 
 /// k-factors, Cliff-Lorimer / zeta / cross-section quantification and
diff --git a/Tests/SpectroEDXTests/SumEscapeIdenticalTests.swift b/Tests/SpectroEDXTests/SumEscapeIdenticalTests.swift
index 255d1ff..cf82e46 100644
--- a/Tests/SpectroEDXTests/SumEscapeIdenticalTests.swift
+++ b/Tests/SpectroEDXTests/SumEscapeIdenticalTests.swift
@@ -25,8 +25,7 @@ struct SumEscapeIdenticalTests {
         mutating func normal() -> Double { (-2 * log(uniform())).squareRoot() * cos(2 * Double.pi * uniform()) }
     }
 
-    /// The 1500-channel test axis (0 to 14.99 keV) and the short axis that ends between V K-alpha and V K-beta (top 5.115 keV).
-    private static let axis = EnergyAxis(offset: 0, scale: 0.01, size: 1500)
+    /// The short axis that ends between V K-alpha and V K-beta (top 5.115 keV).
     private static let shortAxis = EnergyAxis(offset: 0, scale: 0.005, size: 1024)
 
     /// Kramers x window continuum (as SpectroscopyProposerTests), E0 = 200 keV, plus the planted line areas (counts) of the fit's own groups.
diff --git a/Tests/SpectroEELSTests/SavitzkyGolayPortTests.swift b/Tests/SpectroEELSTests/SavitzkyGolayPortTests.swift
index e4a884e..dc504f6 100644
--- a/Tests/SpectroEELSTests/SavitzkyGolayPortTests.swift
+++ b/Tests/SpectroEELSTests/SavitzkyGolayPortTests.swift
@@ -12,7 +12,6 @@ import Foundation
 import Testing
 import SpectroTestSupport
 import SpectroEELS
-import SpectroCore
 
 struct SavitzkyGolayPortTests {
 
diff --git a/Tests/SpectroKitParityTests/EDSQuantPinsTests.swift b/Tests/SpectroKitParityTests/EDSQuantPinsTests.swift
index 4d14f98..dbdb3de 100644
--- a/Tests/SpectroKitParityTests/EDSQuantPinsTests.swift
+++ b/Tests/SpectroKitParityTests/EDSQuantPinsTests.swift
@@ -1,7 +1,6 @@
 import Foundation
 import Testing
 import SpectroTestSupport
-import SpectroCore
 import SpectroEDX
 
 /// eXSpy quantification pins (tools/edx-exspy-pins/quant_pins.py).
diff --git a/Tests/SpectroKitParityTests/EDXQuantificationTests.swift b/Tests/SpectroKitParityTests/EDXQuantificationTests.swift
index 43701e0..82aa67e 100644
--- a/Tests/SpectroKitParityTests/EDXQuantificationTests.swift
+++ b/Tests/SpectroKitParityTests/EDXQuantificationTests.swift
@@ -1,7 +1,6 @@
 import Foundation
 import Testing
 import SpectroTestSupport
-import SpectroCore
 import SpectroEDX
 
 /// The public per-pixel EDX quantification against eXSpy 0.3.2 / HyperSpy 2.4.0 (`tools/edx-quant-maps/pins.py`, fixture
diff --git a/Tests/SpectroKitParityTests/LineTableParityTests.swift b/Tests/SpectroKitParityTests/LineTableParityTests.swift
index 768eb42..4ae0e81 100644
--- a/Tests/SpectroKitParityTests/LineTableParityTests.swift
+++ b/Tests/SpectroKitParityTests/LineTableParityTests.swift
@@ -8,7 +8,6 @@
 import Foundation
 import Testing
 import SpectroTestSupport
-import SpectroCore
 import SpectroEDX
 
 struct LineTableParityTests {
diff --git a/Tests/SpectroKitParityTests/MLLSPinsTests.swift b/Tests/SpectroKitParityTests/MLLSPinsTests.swift
index 2dce302..210e7f1 100644
--- a/Tests/SpectroKitParityTests/MLLSPinsTests.swift
+++ b/Tests/SpectroKitParityTests/MLLSPinsTests.swift
@@ -14,7 +14,6 @@
 
 import Foundation
 import Testing
-import SpectroTestSupport
 import SpectroEELS
 
 struct MLLSPinsTests {
diff --git a/Tests/SpectroKitParityTests/RLMLLSSpeedTests.swift b/Tests/SpectroKitParityTests/RLMLLSSpeedTests.swift
index 40b8b95..7027caf 100644
--- a/Tests/SpectroKitParityTests/RLMLLSSpeedTests.swift
+++ b/Tests/SpectroKitParityTests/RLMLLSSpeedTests.swift
@@ -5,7 +5,6 @@
 
 import Foundation
 import Testing
-import SpectroTestSupport
 import SpectroEELS
 
 struct RLMLLSSpeedTests {
diff --git a/Tests/SpectroKitParityTests/SavitzkyGolayBitParityTests.swift b/Tests/SpectroKitParityTests/SavitzkyGolayBitParityTests.swift
index d7137f7..6e8ffa6 100644
--- a/Tests/SpectroKitParityTests/SavitzkyGolayBitParityTests.swift
+++ b/Tests/SpectroKitParityTests/SavitzkyGolayBitParityTests.swift
@@ -13,7 +13,6 @@ import Foundation
 import Testing
 import SpectroTestSupport
 import SpectroEELS
-import SpectroCore
 
 struct SavitzkyGolayBitParityTests {
 
diff --git a/Tests/SpectroTestSupport/PlantedRuns.swift b/Tests/SpectroTestSupport/PlantedRuns.swift
index 03ee046..44c0255 100644
--- a/Tests/SpectroTestSupport/PlantedRuns.swift
+++ b/Tests/SpectroTestSupport/PlantedRuns.swift
@@ -59,10 +59,6 @@ package extension Array where Element == MgRun {
     var pReported: Double { isEmpty ? .nan : Double(filter(\.reported).count) / Double(count) }
     var meanNet: Double { map(\.net).reduce(0, +) / Double(count) }
     var meanSigma: Double { map(\.sigma).reduce(0, +) / Double(count) }
-    var sdNet: Double {
-        let m = meanNet
-        return (map { ($0.net - m) * ($0.net - m) }.reduce(0, +) / Double(Swift.max(count - 1, 1))).squareRoot()
-    }
 }
 
 /// Runs cached for the process (the checks and the diagnosis experiments read the same spectra; every run happens once).