diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2eb4a63b33d..91a15d50cf9 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -24,6 +24,10 @@ parameters:
     default: false
     type: boolean
 
+  run_prealpha_workflow:
+    default: false
+    type: boolean
+
 jobs:
   choose_ci_jobs:
     docker:
diff --git a/.circleci/configurations/jobs.yml b/.circleci/configurations/jobs.yml
index d0d17a83f6a..1f40dd95ff3 100644
--- a/.circleci/configurations/jobs.yml
+++ b/.circleci/configurations/jobs.yml
@@ -250,9 +250,9 @@ jobs:
     executor: reactnativeandroid-xlarge
     parameters:
       release_type:
-        description: The type of release to build. Must be one of "nightly", "release", "dry-run".
+        description: The type of release to build. Must be one of "nightly", "release", "dry-run", "prealpha".
         type: enum
-        enum: ["nightly", "release", "dry-run"]
+        enum: ["nightly", "release", "dry-run", "prealpha"]
         default: "dry-run"
     steps:
       - checkout
@@ -1159,9 +1159,9 @@ jobs:
   build_npm_package:
     parameters:
       release_type:
-        description: The type of release to build. Must be one of "nightly", "release", "dry-run".
+        description: The type of release to build. Must be one of "nightly", "release", "dry-run", or "prealpha".
         type: enum
-        enum: ["nightly", "release", "dry-run"]
+        enum: ["nightly", "release", "dry-run", "prealpha"]
         default: "dry-run"
     executor: reactnativeandroid-xlarge
     environment:
@@ -1201,16 +1201,17 @@ jobs:
       - attach_workspace:
           at: .
 
-      # START: Stables and nightlies
+      # START: Stables, nightlies and prealphas
       # This conditional step sets up the necessary credentials for publishing react-native to npm.
       - when:
           condition:
             or:
               - equal: [ "release", << parameters.release_type >> ]
               - equal: [ "nightly", << parameters.release_type >> ]
+              - equal: [ "prealpha", << parameters.release_type >> ]
           steps:
             - run: echo "//registry.npmjs.org/:_authToken=${CIRCLE_NPM_TOKEN}" > ~/.npmrc
-      # END: Stables and nightlies
+      # END: Stables, prealpha and nightlies
 
       - with_gradle_cache:
           steps:
@@ -1288,19 +1289,6 @@ jobs:
           command: |
             node scripts/circleci/poll-maven.js
 
-
-  # -------------------------
-  #    JOBS: Nightly
-  # -------------------------
-  nightly_job:
-    machine:
-      image: ubuntu-2004:202010-01
-    steps:
-      - run:
-          name: Nightly
-          command: |
-            echo "Nightly build run"
-
   find_and_publish_bumped_packages:
     executor: nodelts
     steps:
diff --git a/.circleci/configurations/test_workflows/testAll.yml b/.circleci/configurations/test_workflows/testAll.yml
index 145dcbd71ff..ad95c094443 100644
--- a/.circleci/configurations/test_workflows/testAll.yml
+++ b/.circleci/configurations/test_workflows/testAll.yml
@@ -3,6 +3,7 @@
       and:
         - equal: [ false, << pipeline.parameters.run_release_workflow >> ]
         - equal: [ false, << pipeline.parameters.run_nightly_workflow >> ]
+        - equal: [ false, << pipeline.parameters.run_prealpha_workflow >> ]
     jobs:
       - prepare_package_for_release:
           name: prepare_package_for_release
diff --git a/.circleci/configurations/test_workflows/testAndroid.yml b/.circleci/configurations/test_workflows/testAndroid.yml
index b21ed9775fc..fd14ab1f26c 100644
--- a/.circleci/configurations/test_workflows/testAndroid.yml
+++ b/.circleci/configurations/test_workflows/testAndroid.yml
@@ -3,6 +3,7 @@
       and:
           - equal: [ false, << pipeline.parameters.run_release_workflow >> ]
           - equal: [ false, << pipeline.parameters.run_nightly_workflow >> ]
+          - equal: [ false, << pipeline.parameters.run_prealpha_workflow >> ]
     jobs:
       - prepare_package_for_release:
           name: prepare_package_for_release
diff --git a/.circleci/configurations/test_workflows/testE2E.yml b/.circleci/configurations/test_workflows/testE2E.yml
index b161180ee5a..a18277b9826 100644
--- a/.circleci/configurations/test_workflows/testE2E.yml
+++ b/.circleci/configurations/test_workflows/testE2E.yml
@@ -3,6 +3,7 @@
       and:
         - equal: [ false, << pipeline.parameters.run_release_workflow >> ]
         - equal: [ false, << pipeline.parameters.run_nightly_workflow >> ]
+        - equal: [ false, << pipeline.parameters.run_prealpha_workflow >> ]
     jobs:
       - test_e2e_ios:
           ruby_version: "2.7.7"
diff --git a/.circleci/configurations/test_workflows/testIOS.yml b/.circleci/configurations/test_workflows/testIOS.yml
index 484ef5a8f2e..487358cef7a 100644
--- a/.circleci/configurations/test_workflows/testIOS.yml
+++ b/.circleci/configurations/test_workflows/testIOS.yml
@@ -3,6 +3,7 @@
       and:
         - equal: [ false, << pipeline.parameters.run_release_workflow >> ]
         - equal: [ false, << pipeline.parameters.run_nightly_workflow >> ]
+        - equal: [ false, << pipeline.parameters.run_prealpha_workflow >> ]
     jobs:
       - prepare_package_for_release:
           name: prepare_package_for_release
diff --git a/.circleci/configurations/test_workflows/testJS.yml b/.circleci/configurations/test_workflows/testJS.yml
index 6c5ea93e1c7..0c381150c17 100644
--- a/.circleci/configurations/test_workflows/testJS.yml
+++ b/.circleci/configurations/test_workflows/testJS.yml
@@ -3,6 +3,7 @@
       and:
         - equal: [ false, << pipeline.parameters.run_release_workflow >> ]
         - equal: [ false, << pipeline.parameters.run_nightly_workflow >> ]
+        - equal: [ false, << pipeline.parameters.run_prealpha_workflow >> ]
     jobs:
       - test_js:
           run_disabled_tests: false
diff --git a/.circleci/configurations/top_level.yml b/.circleci/configurations/top_level.yml
index 4bfbebeb383..22fb66b3fc4 100644
--- a/.circleci/configurations/top_level.yml
+++ b/.circleci/configurations/top_level.yml
@@ -29,7 +29,7 @@ references:
     environment:
       - TERM: "dumb"
       - GRADLE_OPTS: '-Dorg.gradle.daemon=false'
-      # By default we only build ARM64 to save time/resources. For release/nightlies, we override this value to build all archs.
+      # By default we only build ARM64 to save time/resources. For release/nightlies/prealpha, we override this value to build all archs.
       - ORG_GRADLE_PROJECT_reactNativeArchitectures: "arm64-v8a"
       # Repeated here, as the environment key in this executor will overwrite the one in defaults
       - PUBLIC_ANALYSISBOT_GITHUB_TOKEN_A: *github_analysisbot_token_a
@@ -145,3 +145,7 @@ parameters:
   run_nightly_workflow:
     default: false
     type: boolean
+
+  run_prealpha_workflow:
+    default: false
+    type: boolean
diff --git a/.circleci/configurations/workflows.yml b/.circleci/configurations/workflows.yml
index be128b7d0af..abf5c0bab65 100644
--- a/.circleci/configurations/workflows.yml
+++ b/.circleci/configurations/workflows.yml
@@ -7,6 +7,7 @@
 #    and:
 #      - equal: [ false, << pipeline.parameters.run_release_workflow >> ]
 #      - equal: [ false, << pipeline.parameters.run_nightly_workflow >> ]
+#      - equal: [ false, << pipeline.parameters.run_prealpha_workflow >> ]
 #
 #  It's setup this way so we can trigger a release via a POST
 #  See limitations: https://support.circleci.com/hc/en-us/articles/360050351292-How-to-trigger-a-workflow-via-CircleCI-API-v2
@@ -80,6 +81,7 @@ workflows:
       and:
         - equal: [ false, << pipeline.parameters.run_release_workflow >> ]
         - equal: [ false, << pipeline.parameters.run_nightly_workflow >> ]
+        - equal: [ false, << pipeline.parameters.run_prealpha_workflow >> ]
     jobs:
       # Run lints on every commit
       - analyze_code
@@ -90,7 +92,6 @@ workflows:
   nightly:
     when: << pipeline.parameters.run_nightly_workflow >>
     jobs:
-      - nightly_job
       - prepare_hermes_workspace
       - build_android:
           release_type: "nightly"
@@ -124,11 +125,48 @@ workflows:
             - build_hermes_macos
             - build_hermesc_windows
 
+  prealpha:
+    when: << pipeline.parameters.run_prealpha_workflow >>
+    jobs:
+      - prepare_hermes_workspace
+      - build_android:
+          release_type: "prealpha"
+      - build_hermesc_linux:
+          requires:
+            - prepare_hermes_workspace
+      - build_hermesc_apple:
+          requires:
+            - prepare_hermes_workspace
+      - build_apple_slices_hermes:
+          requires:
+            - build_hermesc_apple
+          matrix:
+            parameters:
+              flavor: ["Debug", "Release"]
+              slice: ["macosx", "iphoneos", "iphonesimulator", "catalyst"]
+      - build_hermesc_windows:
+          requires:
+            - prepare_hermes_workspace
+      - build_hermes_macos:
+          requires:
+            - build_apple_slices_hermes
+          matrix:
+            parameters:
+              flavor: ["Debug", "Release"]
+      - build_npm_package:
+          release_type: "prealpha"
+          requires:
+            - build_android
+            - build_hermesc_linux
+            - build_hermes_macos
+            - build_hermesc_windows
+
   publish_bumped_packages:
     when:
       and:
         - equal: [ false, << pipeline.parameters.run_release_workflow >> ]
         - equal: [ false, << pipeline.parameters.run_nightly_workflow >> ]
+        - equal: [ false, << pipeline.parameters.run_prealpha_workflow >> ]
     jobs:
       - find_and_publish_bumped_packages:
           <<: *main_or_stable_only