diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bc0d1bf519..0ba17a65df 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,9 +13,15 @@ jobs:
     strategy:
       matrix:
         include:
+          - os: macos-10.15
+            job: test
+            profile: fastci
           - os: macos-10.15
             job: test
             profile: release
+          - os: windows-2019
+            job: test
+            profile: fastci
           - os: windows-2019
             job: test
             profile: release
@@ -329,11 +335,19 @@ jobs:
           (matrix.job == 'test' || matrix.job == 'bench') &&
           matrix.profile == 'debug' && !matrix.use_sysroot
         run: cargo build --locked --all-targets
+    
+      - name: Build fastci
+        if: (matrix.job == 'test' && matrix.profile == 'fastci')
+        run: cargo build --locked --all-targets
+        env:
+          CARGO_PROFILE_DEV_DEBUG: 0
 
       - name: Build release
         if: |
           (matrix.job == 'test' || matrix.job == 'bench') &&
-          matrix.profile == 'release' && !matrix.use_sysroot
+          matrix.profile == 'release' && !matrix.use_sysroot &&
+          github.repository == 'denoland/deno' &&
+          (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/'))
         run: cargo build --release --locked --all-targets
 
       - name: Build release (in sysroot)
@@ -359,7 +373,9 @@ jobs:
         if: |
           startsWith(matrix.os, 'macOS') &&
           matrix.job == 'test' &&
-          matrix.profile == 'release'
+          matrix.profile == 'release' &&
+          github.repository == 'denoland/deno' &&
+          (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/'))
         run: |
           cd target/release
           zip -r deno-x86_64-apple-darwin.zip deno
@@ -368,7 +384,9 @@ jobs:
         if: |
           startsWith(matrix.os, 'windows') &&
           matrix.job == 'test' &&
-          matrix.profile == 'release'
+          matrix.profile == 'release' &&
+          github.repository == 'denoland/deno' &&
+          (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/'))
         run: |
           Compress-Archive -CompressionLevel Optimal -Force -Path target/release/deno.exe -DestinationPath target/release/deno-x86_64-pc-windows-msvc.zip
 
@@ -403,10 +421,18 @@ jobs:
           cargo test --locked --doc
           cargo test --locked
 
+      - name: Test fastci
+        if: (matrix.job == 'test' && matrix.profile == 'fastci')
+        run: cargo test --locked
+        env:
+          CARGO_PROFILE_DEV_DEBUG: 0
+
       - name: Test release
         if: |
           matrix.job == 'test' && matrix.profile == 'release' &&
-          !matrix.use_sysroot
+          !matrix.use_sysroot &&
+          github.repository == 'denoland/deno' &&
+          (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/'))
         run: cargo test --release --locked
 
       - name: Test release (in sysroot)
@@ -517,7 +543,7 @@ jobs:
           git push origin gh-pages
 
       - name: Build product size info
-        if: matrix.job != 'lint'
+        if: matrix.job != 'lint' && matrix.profile != 'fastci'
         run: |
           du -hd1 "./target/${{ matrix.profile }}"
           du -ha  "./target/${{ matrix.profile }}/deno"