diff --git a/.github/workflows/build_reusable.yml b/.github/workflows/build_reusable.yml
index c8f71547..9f484276 100644
--- a/.github/workflows/build_reusable.yml
+++ b/.github/workflows/build_reusable.yml
@@ -19,6 +19,10 @@ on:
         required: false
         type: string
         default: "Apple Development"
+      commit_version_changes:
+        required: false
+        type: boolean
+        default: true
 
 jobs:
   build:
@@ -84,6 +88,7 @@ jobs:
           sed -i '' "s/CURRENT_PROJECT_VERSION = [^;]*/CURRENT_PROJECT_VERSION = ${BUILD_NUMBER}/g" "$PBXPROJ"
 
       - name: Commit version changes
+        if: ${{ inputs.commit_version_changes }}
         run: |
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
new file mode 100644
index 00000000..b019651d
--- /dev/null
+++ b/.github/workflows/nightly.yml
@@ -0,0 +1,169 @@
+name: Nightly Branch Builds
+
+on:
+  push:
+    branches:
+      - main
+      - dev
+    paths:
+      - "boringNotch/**"
+      - "BoringNotchXPCHelper/**"
+      - "boringNotch.xcodeproj/**"
+      - "Configuration/**"
+      - "mediaremote-adapter/**"
+
+concurrency:
+  group: nightly-${{ github.ref_name }}
+  cancel-in-progress: true
+
+permissions:
+  contents: write
+
+env:
+  PROJECT_NAME: boringNotch
+
+jobs:
+  prepare:
+    name: Prepare nightly metadata
+    runs-on: ubuntu-latest
+    outputs:
+      branch_name: ${{ steps.meta.outputs.branch_name }}
+      commit_sha: ${{ steps.meta.outputs.commit_sha }}
+      short_sha: ${{ steps.meta.outputs.short_sha }}
+      tag: ${{ steps.meta.outputs.tag }}
+      appcast_file: ${{ steps.meta.outputs.appcast_file }}
+      build_number: ${{ steps.meta.outputs.build_number }}
+      asset_name: ${{ steps.meta.outputs.asset_name }}
+    steps:
+      - name: Compute metadata
+        id: meta
+        run: |
+          set -euo pipefail
+          BRANCH_NAME="${GITHUB_REF_NAME}"
+          COMMIT_SHA="${GITHUB_SHA}"
+          SHORT_SHA="${COMMIT_SHA::7}"
+          TAG="nightly-${BRANCH_NAME}-${SHORT_SHA}"
+          APPCAST_FILE="appcast-${BRANCH_NAME}.xml"
+          BUILD_NUMBER="$(date -u +%Y%m%d%H%M%S)$(printf '%06d%02d' "${GITHUB_RUN_NUMBER:-0}" "${GITHUB_RUN_ATTEMPT:-0}")"
+          ASSET_NAME="boringNotch-${BRANCH_NAME}-${SHORT_SHA}.dmg"
+          {
+            echo "branch_name=$BRANCH_NAME"
+            echo "commit_sha=$COMMIT_SHA"
+            echo "short_sha=$SHORT_SHA"
+            echo "tag=$TAG"
+            echo "appcast_file=$APPCAST_FILE"
+            echo "build_number=$BUILD_NUMBER"
+            echo "asset_name=$ASSET_NAME"
+          } >> "$GITHUB_OUTPUT"
+
+  build:
+    name: Build nightly DMG
+    needs: [prepare]
+    uses: ./.github/workflows/build_reusable.yml
+    with:
+      head_ref: ${{ needs.prepare.outputs.branch_name }}
+      version: ""
+      build_number: ${{ needs.prepare.outputs.build_number }}
+      xcode_version: "16.4"
+      code_sign_identity: "Apple Development"
+      commit_version_changes: false
+    secrets:
+      BUILD_CERTIFICATE_BASE64: ${{ secrets.BUILD_CERTIFICATE_BASE64 }}
+      P12_PASSWORD: ${{ secrets.P12_PASSWORD }}
+      KEYCHAIN_PASSWORD: ${{ secrets.KEYCHAIN_PASSWORD }}
+
+  publish:
+    name: Publish nightly channel
+    needs: [prepare, build]
+    runs-on: macos-latest
+    permissions:
+      contents: write
+    env:
+      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      SPARKLE_PRIVATE_KEY: ${{ secrets.PRIVATE_SPARKLE_KEY }}
+      BRANCH_NAME: ${{ needs.prepare.outputs.branch_name }}
+      COMMIT_SHA: ${{ needs.prepare.outputs.commit_sha }}
+      SHORT_SHA: ${{ needs.prepare.outputs.short_sha }}
+      TAG: ${{ needs.prepare.outputs.tag }}
+      APPCAST_FILE: ${{ needs.prepare.outputs.appcast_file }}
+      ASSET_NAME: ${{ needs.prepare.outputs.asset_name }}
+      COMMIT_MESSAGE: ${{ github.event.head_commit.message }}
+    steps:
+      - name: Checkout branch
+        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        with:
+          ref: ${{ env.BRANCH_NAME }}
+
+      - name: Download DMG artifact
+        uses: actions/download-artifact@70fc10c6e5e1ce46ad2ea6f2b72d43f7d47b13c3 # v8.0.0
+        with:
+          name: ${{ env.PROJECT_NAME }}.dmg
+          path: Release
+
+      - name: Rename DMG to immutable name
+        run: |
+          set -euo pipefail
+          mv "Release/${PROJECT_NAME}.dmg" "Release/${ASSET_NAME}"
+
+      - name: Create embedded release notes
+        run: |
+          ESCAPED_COMMIT_MESSAGE="$(printf '%s' "$COMMIT_MESSAGE" | sed -e 's/&/\&amp;/g' -e 's/</\&lt;/g' -e 's/>/\&gt;/g')"
+          cat > Release/boringNotch.html <<HTML
+          <h2>Nightly ${BRANCH_NAME}</h2>
+          <p>Commit: <code>${COMMIT_SHA}</code></p>
+          <p>Message: ${ESCAPED_COMMIT_MESSAGE}</p>
+          <p>Source: <a href="https://github.com/TheBoredTeam/boring.notch/commit/${COMMIT_SHA}">View commit</a></p>
+          HTML
+
+      - name: Generate signed nightly appcast
+        run: |
+          set -euo pipefail
+          test -x Configuration/sparkle/generate_appcast || {
+            echo "::error::Configuration/sparkle/generate_appcast missing or not executable"; exit 1;
+          }
+          DOWNLOAD_PREFIX="https://github.com/TheBoredTeam/boring.notch/releases/download/${TAG}/"
+          printf '%s' "$SPARKLE_PRIVATE_KEY" | ./Configuration/sparkle/generate_appcast \
+            --ed-key-file - \
+            --link "https://github.com/TheBoredTeam/boring.notch/commits/${BRANCH_NAME}" \
+            --download-url-prefix "${DOWNLOAD_PREFIX}" \
+            --embed-release-notes \
+            --channel "${BRANCH_NAME}" \
+            -o "updater/${APPCAST_FILE}" \
+            Release/
+
+      - name: Create immutable nightly release
+        run: |
+          set -euo pipefail
+          TITLE="Nightly ${BRANCH_NAME}"
+          NOTES="Automated nightly build for ${BRANCH_NAME}. Commit: ${SHORT_SHA}"
+          if gh release view "$TAG" >/dev/null 2>&1; then
+            echo "Release $TAG already exists; keeping immutable release."
+          else
+            gh release create "$TAG" \
+              --title "$TITLE" \
+              --notes "$NOTES" \
+              --prerelease \
+              --target "$COMMIT_SHA"
+          fi
+
+      - name: Upload immutable nightly DMG
+        run: |
+          set -euo pipefail
+          if gh release view "$TAG" --json assets --jq '.assets[].name' | grep -Fxq "$ASSET_NAME"; then
+            echo "Asset $ASSET_NAME already exists in $TAG; skipping upload."
+          else
+            gh release upload "$TAG" "Release/${ASSET_NAME}"
+          fi
+
+      - name: Commit branch appcast pointer
+        run: |
+          set -euo pipefail
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+          git add "updater/${APPCAST_FILE}"
+          if git diff --cached --quiet; then
+            echo "No changes detected in ${APPCAST_FILE}; skipping commit and push."
+            exit 0
+          fi
+          git commit -m "Update ${APPCAST_FILE} to ${SHORT_SHA}"
+          git push origin "HEAD:${BRANCH_NAME}"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 348f2cd4..3722f14a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -115,7 +115,7 @@ jobs:
           OUTPUT=$(python3 .github/scripts/extract_version.py -c "$COMMENT")
           VERSION=$(awk -F= '/^version=/{print $2; exit}' <<<"$OUTPUT")
           IS_BETA=$(awk -F= '/^is_beta=/{print $2; exit}' <<<"$OUTPUT")
-          BUILD_NUMBER="${GITHUB_RUN_NUMBER}"
+          BUILD_NUMBER="$(date -u +%Y%m%d%H%M%S)$(printf '%06d%02d' "${GITHUB_RUN_NUMBER:-0}" "${GITHUB_RUN_ATTEMPT:-0}")"
           echo "version=$VERSION" >> "$GITHUB_OUTPUT"
           echo "is_beta=$IS_BETA" >> "$GITHUB_OUTPUT"
           echo "build_number=$BUILD_NUMBER" >> "$GITHUB_OUTPUT"
@@ -175,19 +175,19 @@ jobs:
   build:
     name: Build and sign
     needs: preparation
+    permissions:
+      contents: write
     uses: ./.github/workflows/build_reusable.yml
     with:
       head_ref: ${{ needs.preparation.outputs.head_ref }}
       version: ${{ needs.preparation.outputs.version }}
       build_number: ${{ needs.preparation.outputs.build_number }}
-      xcode_version: ${{ needs.preparation.outputs.xcode_version }}
-      code_sign_identity: ${{ needs.preparation.outputs.code_sign_identity }}
+      xcode_version: ${{ env.XCODE_VERSION }}
+      code_sign_identity: ${{ env.CODE_SIGN_IDENTITY }}
     secrets:
       BUILD_CERTIFICATE_BASE64: ${{ secrets.BUILD_CERTIFICATE_BASE64 }}
       P12_PASSWORD: ${{ secrets.P12_PASSWORD }}
       KEYCHAIN_PASSWORD: ${{ secrets.KEYCHAIN_PASSWORD }}
-      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      RELEASE_TOKEN: ${{ secrets.RELEASE_TOKEN }}
 
   publish:
     name: Publish release
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index f02fac50..488512b7 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -92,6 +92,12 @@ Please submit all translations to [Crowdin](https://crowdin.com/project/boring-n
 
 4. **Be patient**: Reviews take time. Maintainers will get to your PR as soon as they can.
 
+### Release Channels (Maintainers)
+
+- **Stable/Beta** are produced by the release workflow.
+- **Nightly (Main/Dev)** builds are produced on code pushes to `main` and `dev` branches.
+- Nightly builds are not generated from the `pull_request` event itself.
+
 <!-- ## Code Style Guidelines
 
 - Follow the existing code style and conventions used in the project
diff --git a/README.md b/README.md
index d4f09b6e..0400519f 100644
--- a/README.md
+++ b/README.md
@@ -102,6 +102,18 @@ brew install --cask TheBoredTeam/boring-notch/boring-notch --no-quarantine
 - Use the controls to manage your music like a rockstar.
 - Click the star in your menu bar to customize your notch to your heart's content.
 
+## Update Channels
+
+Boring Notch supports multiple update channels in **Settings → About → Software updates**:
+
+- **Stable**: Official public releases.
+- **Beta**: Prerelease builds from the release pipeline.
+- **Main (Nightly)**: Automated nightly builds from the `main` branch.
+- **Dev (Nightly)**: Automated nightly builds from the `dev` branch.
+
+> [!NOTE]
+> Nightly channels are generated from code pushes to their branch (not from pull request events).
+
 ## 📋 Roadmap
 - [x] Playback live activity 🎧
 - [x] Calendar integration 📆
@@ -188,4 +200,3 @@ For a full list of licenses and attributions, please see the [Third-Party Licens
 - **SwiftUI**: For making us look like coding wizards.
 - **You**: For being awesome and checking out **boring.notch**!
 
-
diff --git a/boringNotch/boringNotchApp.swift b/boringNotch/boringNotchApp.swift
index f6a82044..0ab03a9e 100644
--- a/boringNotch/boringNotchApp.swift
+++ b/boringNotch/boringNotchApp.swift
@@ -18,11 +18,13 @@ struct DynamicNotchApp: App {
     @Default(.menubarIcon) var showMenuBarIcon
     @Environment(\.openWindow) var openWindow
 
+    let updaterDelegate: UpdateChannelUpdaterDelegate
     let updaterController: SPUStandardUpdaterController
 
     init() {
+        updaterDelegate = UpdateChannelUpdaterDelegate()
         updaterController = SPUStandardUpdaterController(
-            startingUpdater: true, updaterDelegate: nil, userDriverDelegate: nil)
+            startingUpdater: true, updaterDelegate: updaterDelegate, userDriverDelegate: nil)
 
         // Initialize the settings window controller with the updater controller
         SettingsWindowController.shared.setUpdaterController(updaterController)
diff --git a/boringNotch/components/Settings/SoftwareUpdater.swift b/boringNotch/components/Settings/SoftwareUpdater.swift
index f9db6803..6c04d21b 100644
--- a/boringNotch/components/Settings/SoftwareUpdater.swift
+++ b/boringNotch/components/Settings/SoftwareUpdater.swift
@@ -6,8 +6,19 @@
 //
 
 import SwiftUI
+import Defaults
 import Sparkle
 
+final class UpdateChannelUpdaterDelegate: NSObject, SPUUpdaterDelegate {
+    @objc func feedURLString(for updater: SPUUpdater) -> String? {
+        Defaults[.updateChannel].feedURLString
+    }
+
+    @objc func allowedChannels(for updater: SPUUpdater) -> Set<String> {
+        Defaults[.updateChannel].allowedSparkleChannels
+    }
+}
+
 final class CheckForUpdatesViewModel: ObservableObject {
     @Published var canCheckForUpdates = false
 
@@ -37,6 +48,7 @@ struct CheckForUpdatesView: View {
 struct UpdaterSettingsView: View {
     private let updater: SPUUpdater
     
+    @Default(.updateChannel) private var updateChannel
     @State private var automaticallyChecksForUpdates: Bool
     @State private var automaticallyDownloadsUpdates: Bool
     
@@ -47,21 +59,36 @@ struct UpdaterSettingsView: View {
     }
     
     var body: some View {
-        Section {
+        Section(
+            header: HStack {
+                Text("Software updates")
+            },
+            footer: Text(
+                NSLocalizedString(
+                    "Stable and Beta come from official releases. Main and Dev use nightly builds from those branches.",
+                    comment: "Software updates channel footer"
+                )
+            )
+        ) {
+            Picker(
+                NSLocalizedString("Update channel", comment: "Software updates channel picker label"),
+                selection: $updateChannel
+            ) {
+                ForEach(UpdateChannel.allCases) { channel in
+                    Text(channel.title).tag(channel)
+                }
+            }
+
             Toggle("Automatically check for updates", isOn: $automaticallyChecksForUpdates)
                 .onChange(of: automaticallyChecksForUpdates) { _, newValue in
                     updater.automaticallyChecksForUpdates = newValue
                 }
-            
+
             Toggle("Automatically download updates", isOn: $automaticallyDownloadsUpdates)
                 .disabled(!automaticallyChecksForUpdates)
                 .onChange(of: automaticallyDownloadsUpdates) { _, newValue in
                     updater.automaticallyDownloadsUpdates = newValue
                 }
-        } header: {
-            HStack {
-                Text("Software updates")
-            }
         }
     }
 }
diff --git a/boringNotch/models/Constants.swift b/boringNotch/models/Constants.swift
index 0747d328..eed483e8 100644
--- a/boringNotch/models/Constants.swift
+++ b/boringNotch/models/Constants.swift
@@ -134,12 +134,61 @@ enum OSDControlSource: String, CaseIterable, Identifiable, Defaults.Serializable
     }
 }
 
+enum UpdateChannel: String, CaseIterable, Identifiable, Defaults.Serializable {
+    case stable
+    case beta
+    case main
+    case dev
+
+    var id: String { rawValue }
+
+    var title: String {
+        switch self {
+        case .stable:
+            return NSLocalizedString("Stable", comment: "Update channel: stable")
+        case .beta:
+            return NSLocalizedString("Beta", comment: "Update channel: beta")
+        case .main:
+            return NSLocalizedString("Main (Nightly)", comment: "Update channel: main nightly")
+        case .dev:
+            return NSLocalizedString("Dev (Nightly)", comment: "Update channel: dev nightly")
+        }
+    }
+
+    var feedURLString: String {
+        switch self {
+        case .stable:
+            return "https://TheBoredTeam.github.io/boring.notch/appcast.xml"
+        case .beta:
+            return "https://TheBoredTeam.github.io/boring.notch/appcast.xml"
+        case .main:
+            return "https://raw.githubusercontent.com/TheBoredTeam/boring.notch/main/updater/appcast-main.xml"
+        case .dev:
+            return "https://raw.githubusercontent.com/TheBoredTeam/boring.notch/dev/updater/appcast-dev.xml"
+        }
+    }
+
+    var allowedSparkleChannels: Set<String> {
+        switch self {
+        case .stable:
+            return []
+        case .beta:
+            return ["beta"]
+        case .main:
+            return ["main"]
+        case .dev:
+            return ["dev"]
+        }
+    }
+}
+
 extension Defaults.Keys {
     // MARK: General
     static let menubarIcon = Key<Bool>("menubarIcon", default: true)
     static let showOnAllDisplays = Key<Bool>("showOnAllDisplays", default: false)
     static let automaticallySwitchDisplay = Key<Bool>("automaticallySwitchDisplay", default: true)
     static let releaseName = Key<String>("releaseName", default: "Flying Rabbit 🐇🪽")
+    static let updateChannel = Key<UpdateChannel>("updateChannel", default: .stable)
     
     // MARK: Behavior
     static let minimumHoverDuration = Key<TimeInterval>("minimumHoverDuration", default: 0.3)