diff --git a/.github/workflows/general_checks.yml b/.github/workflows/general_checks.yml
new file mode 100644
index 0000000..c2e333e
--- /dev/null
+++ b/.github/workflows/general_checks.yml
@@ -0,0 +1,32 @@
+name: General checks
+
+on:
+  push:
+    branches: [ main ]
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  sube:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: extractions/setup-just@v2
+    - name: Check sube
+      run: just check-sube
+
+  scales:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: extractions/setup-just@v2
+    - name: Check
+      run: just check-scales
+
+  libwallet:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: extractions/setup-just@v2
+    - name: Check
+      run: just check-libwallet
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
deleted file mode 100644
index 4eb52f4..0000000
--- a/.github/workflows/rust.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-name: Rust
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-
-env:
-  CARGO_TERM_COLOR: always
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Build
-      run: cargo build --verbose
-    - name: Run tests
-      run: cargo test --verbose --all-features
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d6a1cf5..04c2cb3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,65 +1,16 @@
-on: [push, pull_request]
+on: 
+  pull_request:
+    paths: ['sube/**']
 
-name: Continuous integration
+name: Sube
 
 jobs:
   check:
-    name: Check
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
-      - uses: actions-rs/cargo@v1
-        with:
-          command: check
-
-  test:
-    name: Test Suite
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
-      - uses: actions-rs/cargo@v1
-        with:
-          command: test
-          args: --features=std
-
-  fmt:
-    name: Rustfmt
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
-      - run: rustup component add rustfmt
-      - uses: actions-rs/cargo@v1
-        with:
-          command: fmt
-          args: --all -- --check
-
-  clippy:
-    name: Clippy
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: stable
-          override: true
-      - run: rustup component add clippy
-      - uses: actions-rs/cargo@v1
-        with:
-          command: clippy
-          args: -- -D warnings
+      - uses: extractions/setup-just@v2
+      - name: Check
+        run: just -f sube/justfile check
+      - name: Lint
+        run: just -f sube/justfile lint
diff --git a/justfile b/justfile
index 8972194..124c3c7 100644
--- a/justfile
+++ b/justfile
@@ -1,8 +1,12 @@
-build-web:
-	@mkdir -p dist
-	cargo build --release --target wasm32-unknown-unknown
-	@cp ./target/wasm32-unknown-unknown/release/pjs.wasm dist/
-	wasm-bindgen --out-dir dist --target web --no-typescript --remove-name-section dist/pjs.wasm
-
-test:
-	cargo test
+default: check
+
+check: check-sube check-scales check-libwallet
+
+check-sube:
+	@just -f sube/justfile check lint
+
+check-scales:
+	@just -f scales/justfile check lint
+
+check-libwallet:
+	@just -f libwallet/justfile check lint
diff --git a/libwallet/justfile b/libwallet/justfile
index f084758..b49c6a7 100644
--- a/libwallet/justfile
+++ b/libwallet/justfile
@@ -1,6 +1,12 @@
 default:
 	just --choose
 
+check:
+    cargo check
+
+lint:
+    cargo clippy -- -D warnings
+
 check-no-std:
 	cargo build --features substrate --target wasm32-unknown-unknown
 	cargo build --features substrate --target riscv32i-unknown-none-elf
diff --git a/scales/justfile b/scales/justfile
new file mode 100644
index 0000000..1456ed8
--- /dev/null
+++ b/scales/justfile
@@ -0,0 +1,7 @@
+default: check
+
+check:
+    cargo check
+
+lint:
+    cargo clippy -- -D warnings
diff --git a/sube/justfile b/sube/justfile
new file mode 100644
index 0000000..1456ed8
--- /dev/null
+++ b/sube/justfile
@@ -0,0 +1,7 @@
+default: check
+
+check:
+    cargo check
+
+lint:
+    cargo clippy -- -D warnings