diff --git a/.github/workflows/README.md b/.github/workflows/README.md
deleted file mode 100644
index c56be3f2..00000000
--- a/.github/workflows/README.md
+++ /dev/null
@@ -1,23 +0,0 @@
-# rust-miniscript workflow notes
-
-We are attempting to run max 20 parallel jobs using GitHub actions (usage limit for free tier).
-
-ref: https://docs.github.com/en/actions/learn-github-actions/usage-limits-billing-and-administration
-
-The minimal/recent lock files are handled by CI (`rust.yml`).
-
-## Jobs
-
-Run from `rust.yml` unless stated otherwise. Total 11 jobs.
-
-1.  `Stable - minimal`
-2.  `Stable - recent`
-3.  `Nightly - minimal`
-4.  `Nightly - recent`
-5.  `MSRV - minimal`
-6.  `Integration - 0.18.0`
-7.  `Integration - 0.18.1`
-8.  `Integration - 0.19.0.1`
-9.  `Integration - 0.19.1`
-10. `Integration - 0.20.0`
-11. `Integration - 0.21.0`
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
new file mode 100644
index 00000000..9fa1deef
--- /dev/null
+++ b/.github/workflows/ci.yaml
@@ -0,0 +1,39 @@
+name: CI
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+    branches:
+    - master
+
+defaults:
+  run:
+    shell: bash
+
+env:
+  RUSTFLAGS: --deny warnings
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Install Rust Toolchain Components
+      uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: 1.79.0
+
+    - uses: Swatinem/rust-cache@v2
+
+    - name: Unit Tests
+      run: cargo test --all
+
+    - name: Integration Tests
+      env:
+        BITCOINVERSION: 0.21.0
+      run: ./contrib/integration_test.sh
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
deleted file mode 100644
index d75c33fa..00000000
--- a/.github/workflows/rust.yml
+++ /dev/null
@@ -1,107 +0,0 @@
----   # rust-bitcoincore-rpc CI: If you edit this file please update README.md
-on:   # yamllint disable-line rule:truthy
-  push:
-    branches:
-      - master
-      - 'test-ci/**'
-  pull_request:
-
-name: Continuous integration
-
-jobs:
-  Stable:                       # 2 jobs, one per lock file.
-    name: Test - stable toolchain
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        dep: [minimal, recent]
-    steps:
-      - name: "Checkout repo"
-        uses: actions/checkout@v4
-      - name: "Checkout maintainer tools"
-        uses: actions/checkout@v4
-        with:
-          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
-          rev: b2ac115
-          path: maintainer-tools
-      - name: "Select toolchain"
-        uses: dtolnay/rust-toolchain@stable
-      - name: "Set dependencies"
-        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
-      - name: "Run test script"
-        run: ./maintainer-tools/ci/run_task.sh stable
-
-  Nightly:                      #  2 jobs, one per lock file.
-    name: Test - nightly toolchain
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        dep: [minimal, recent]
-    steps:
-      - name: "Checkout repo"
-        uses: actions/checkout@v4
-      - name: "Checkout maintainer tools"
-        uses: actions/checkout@v4
-        with:
-          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
-          rev: b2ac115
-          path: maintainer-tools
-      - name: "Select toolchain"
-        uses: dtolnay/rust-toolchain@nightly
-      - name: "Set dependencies"
-        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
-      - name: "Run test script"
-        run: ./maintainer-tools/ci/run_task.sh nightly
-
-  MSRV:          # 2 jobs, one per lock file.
-    name: Test - 1.56.1 toolchain
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        dep: [minimal, recent]
-    steps:
-      - name: "Checkout repo"
-        uses: actions/checkout@v4
-      - name: "Checkout maintainer tools"
-        uses: actions/checkout@v4
-        with:
-          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
-          rev: b2ac115
-          path: maintainer-tools
-      - name: "Select toolchain"
-        uses: dtolnay/rust-toolchain@stable
-        with:
-          toolchain: "1.56.1"
-      - name: "Set dependencies"
-        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
-      - name: "Run test script"
-        run: ./maintainer-tools/ci/run_task.sh msrv
-
-  Integration:                  # 1 job for each Bitcoin Core version.
-    name: Integration tests - stable toolchain
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        bitcoinversion:
-          [
-            "0.18.0",
-            "0.18.1",
-            "0.19.0.1",
-            "0.19.1",
-            "0.20.0",
-            "0.20.1",
-            "0.21.0",
-          ]
-    steps:
-      - name: "Checkout repo"
-        uses: actions/checkout@v4
-      - name: "Select toolchain"
-        uses: dtolnay/rust-toolchain@stable
-      - name: "Run integration tests"
-        env:
-          BITCOINVERSION: ${{ matrix.bitcoinversion }}
-        run: ./contrib/integration_test.sh
diff --git a/.gitignore b/.gitignore
index a9d37c56..1b72444a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
-target
-Cargo.lock
+/Cargo.lock
+/target
diff --git a/Cargo-minimal.lock b/Cargo-minimal.lock
deleted file mode 100644
index b58e1df5..00000000
--- a/Cargo-minimal.lock
+++ /dev/null
@@ -1,575 +0,0 @@
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diff --git a/Cargo.toml b/Cargo.toml
index df0a30c2..b06f9c0f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,5 +1,7 @@
 [workspace]
 
+resolver = "2"
+
 members = [
     "json",
     "client",