diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c960a74..00a9066 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,8 +8,23 @@ on:
   workflow_dispatch:
 
 jobs:
-  run-all:
+  run:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        build:
+        - gcc
+        - clang
+        - rust
+        - fortran
+        - java
+        - scala
+        - kotlin
+        - ruby
+        - python3
+        - node
+        - deno
+        - bun
     steps:
       # clone
       - name: Checkout
@@ -37,10 +52,81 @@ jobs:
         with:
           deno-version: "~1"
       - run: just setup
-      # do the thing
-      - run: just count
+
+      # build
+      - if: ${{ matrix.build == "gcc" }}
+        run: |
+          gcc -O3 ./count.c
+          echo './a.out' > CMD
+      - if: ${{ matrix.build == "clang" }}
+        run: |
+          clang -O3 ./count.c
+          echo './a.out' > CMD
+      - if: ${{ matrix.build == "rust" }}
+        run: |
+          rustc -C opt-level=3 ./count.rs
+          echo './count' > CMD
+      - if: ${{ matrix.build == "fortran" }}
+        run: |
+          gfortran -O3 ./count.f90
+          echo './a.out' > CMD
+      - if: ${{ matrix.build == "java" }}
+        run: |
+          javac count.java
+          echo 'java Count' > CMD
+      - if: ${{ matrix.build == "scala" }}
+        run: |
+          scalac count.scala
+          echo 'scala Count' > CMD
+      - if: ${{ matrix.build == "kotlin" }}
+        run: |
+          kotlinc count.kt -include-runtime -d count.jar
+          echo 'java -jar count.jar' > CMD
+      - if: ${{ matrix.build == "ruby" }}
+        run: echo 'ruby count.rb' > CMD
+      - if: ${{ matrix.build == "python3" }}
+        run: echo 'python3 count.py' > CMD
+      - if: ${{ matrix.build == "node" }}
+        run: echo 'node count.js' > CMD
+      - if: ${{ matrix.build == "deno" }}
+        run: echo 'deno run count.js' > CMD
+      - if: ${{ matrix.build == "bun" }}
+        run: echo 'bun run count.js' > CMD
+
+      # bench
+      - run: |
+          case "$name" in
+            *"python"*|*"ruby"*)
+              args="--runs 1"
+              ;;
+            *)
+              args="--warmup 3"
+              ;;
+          esac
+
+          out="${{ matrix.build }}.json"
+
+          hyperfine $args --shell=none --export-json "$out" "$(cat CMD)"
+          jq '.results[0] | del(.exit_codes)' "$out" | sponge "$out"
+          timers "$f" >/dev/null 2> >(jq '. += {"max_rss":'$(rg -oP '(?:max_rss:\s*)(\d+)' -r '$1')'}' "$out" | sponge "$out")
+
       # report
+      - run: ls -lah .
+      - run: ls -lah results
       - uses: actions/upload-artifact@v3
         with:
-          name: results
-          path: results
\ No newline at end of file
+          name: "${{ matrix.build }}.json"
+          path: "results/${{ matrix.build }}"
+
+  report:
+    needs: ['run']
+    runs-on: ubuntu-latest
+    steps:
+      - uses: oven-sh/setup-bun@v1
+      - name: Download Results
+        uses: actions/download-artifact@v2
+        with:
+          path: results
+      - run: ls -lah .
+      - run: ls -lah results
+      # TODO: create report
\ No newline at end of file
diff --git a/count.java b/count.java
index 774d674..d2f50ee 100644
--- a/count.java
+++ b/count.java
@@ -1,4 +1,4 @@
-public class count {
+public class Count {
 
 	public static void main(String[] args){
     int i = 0;
diff --git a/justfile b/justfile
index e505be5..2983b7c 100644
--- a/justfile
+++ b/justfile
@@ -1,7 +1,3 @@
-t := "timers --time=nano"
-r := "results"
-b := "build"
-
 _default:
   just -l
 
@@ -15,55 +11,3 @@ setup:
     cargo install ripgrep --features 'pcre2'
   fi
   cd scripts && npm install
-
-prepare:
-  rm -rf {{r}} {{b}}
-  mkdir {{r}} {{b}}
-
-build: prepare
-  gcc      -O3 ./count.c -o {{b}}/c-gcc
-  clang    -O3 ./count.c -o {{b}}/c-clang
-  rustc    -C opt-level=3 ./count.rs -o {{b}}/rust
-  gfortran -O3 ./count.f90 -o {{b}}/fortran
-  javac count.java -d java
-  mkdir -p scala && scalac count.scala -d scala
-  kotlinc count.kt -include-runtime -d kotlin/kotlin.jar
-  echo "#!/usr/bin/env -S scala -classpath scala Count" > {{b}}/scala
-  echo "#!/usr/bin/env -S java -jar kotlin/kotlin.jar " > {{b}}/kotlin
-  echo "#!/usr/bin/env -S java -cp java count         " > {{b}}/java
-  echo "#!/usr/bin/env -S ruby       \n$(cat count.rb)" > {{b}}/ruby
-  echo "#!/usr/bin/env -S python3    \n$(cat count.py)" > {{b}}/python3
-  echo "#!/usr/bin/env -S node       \n$(cat count.js)" > {{b}}/node
-  echo "#!/usr/bin/env -S deno run   \n$(cat count.js)" > {{b}}/deno
-  echo "#!/usr/bin/env -S bun        \n$(cat count.js)" > {{b}}/bun
-  for f in {{b}}/*; do chmod +x "$f"; done
-
-run what: build
-  {{b}}/{{what}}
-
-all: build
-  #!/usr/bin/env bash
-  set -euxo pipefail
-  for f in {{b}}/*; do
-    sleep 5
-
-    name="$(basename $f)"
-    out="{{r}}/${name}.json"
-
-    case "$name" in
-      *"python"*|*"ruby"*)
-        args="--runs 2"
-        ;;
-      *)
-      args="--warmup 3"
-      ;;
-    esac
-    hyperfine $args --shell=none --export-json "$out" "$f"
-
-    jq '.results[0] | del(.exit_codes)' "$out" | sponge "$out"
-    timers "$f" >/dev/null 2> >(jq '. += {"max_rss":'$(rg -oP '(?:max_rss:\s*)(\d+)' -r '$1')'}' "$out" | sponge "$out")
-  done
-
-count: all
-  node ./scripts/summary.js > {{r}}/table.txt
-  cat {{r}}/table.txt
\ No newline at end of file