diff --git a/.github/workflows/README.md b/.github/workflows/README.md
new file mode 100644
index 000000000..df332f741
--- /dev/null
+++ b/.github/workflows/README.md
@@ -0,0 +1,24 @@
+# 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.  `Lint`
+7.  `Docs`
+8.  `Docsrs`
+9.  `Bench`
+10. `Format`
+10. `Int-tests`
+11. `Embedded`
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 7a50ba319..033cc6d93 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -1,66 +1,190 @@
-on: [push, pull_request]
+---   # rust-miniscript 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:
-  Nightly:
-    name: Nightly - Bench + Docs + Fmt
+  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 Crate
-        uses: actions/checkout@v2
-      - name: Checkout Toolchain
-        uses: actions-rs/toolchain@v1
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Checkout maintainer tools"
+        uses: actions/checkout@v4
         with:
-          profile: minimal
-          toolchain: nightly
-          override: true
-      - name: Install clippy
+          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
+          path: maintainer-tools
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@stable
+      - name: "Set dependencies"
+        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
+      - name: "Run test script"
+        run: ./maintainer-tools/ci/run_task.sh stable
+
+  Nightly:                      # 2 jobs, one per lock file.
+    name: Test - nightly toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        dep: [minimal, recent]
+    steps:
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Checkout maintainer tools"
+        uses: actions/checkout@v4
+        with:
+          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
+          path: maintainer-tools
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@nightly
+      - name: "Set dependencies"
+        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
+      - name: "Run test script"
+        run: ./maintainer-tools/ci/run_task.sh nightly
+
+  MSRV:                         # 1 jobs, minimal lock file only.
+    name: Test - 1.56.1 toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        dep: [minimal]
+    steps:
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Checkout maintainer tools"
+        uses: actions/checkout@v4
+        with:
+          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
+          path: maintainer-tools
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: "1.56.1"
+      - name: "Set dependencies"
+        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
+      - name: "Run test script"
+        run: ./maintainer-tools/ci/run_task.sh msrv
+
+  Lint:
+    name: Lint - nightly toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        dep: [recent]
+    steps:
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Checkout maintainer tools"
+        uses: actions/checkout@v4
+        with:
+          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
+          path: maintainer-tools
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@nightly
+      - name: "Install clippy"
         run: rustup component add clippy
-      - name: Running benchmarks
-        env:
-          DO_BENCH: true
-        run: ./contrib/test.sh
-      - name: Building docs
-        env:
-          DO_DOCS: true
-        run: ./contrib/test.sh
-      - name: Running formatter
-        env:
-          DO_FMT: true
-        run: ./contrib/test.sh
-      - name: Running linter
-        env:
-          DO_LINT: true
-        run: ./contrib/test.sh
+      - name: "Set dependencies"
+        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
+      - name: "Run test script"
+        run: ./maintainer-tools/ci/run_task.sh lint
 
-  Int-tests:
-    name: Integration tests
+  Docs:
+    name: Docs - stable toolchain
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        dep: [recent]
     steps:
-      - name: Checkout Crate
-        uses: actions/checkout@v2
-      - name: Checkout Toolchain
-        uses: actions-rs/toolchain@v1
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Checkout maintainer tools"
+        uses: actions/checkout@v4
         with:
-          profile: minimal
-          toolchain: stable
-          override: true
-      - name: Running integration tests
-        env:
-          DO_BITCOIND_TESTS: true
-        run: ./contrib/test.sh
+          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
+          path: maintainer-tools
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@stable
+      - name: "Set dependencies"
+        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
+      - name: "Run test script"
+        run: ./maintainer-tools/ci/run_task.sh docs
+
+  Docsrs:
+    name: Docs - nightly toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        dep: [recent]
+    steps:
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Checkout maintainer tools"
+        uses: actions/checkout@v4
+        with:
+          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
+          path: maintainer-tools
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@nightly
+      - name: "Set dependencies"
+        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
+      - name: "Run test script"
+        run: ./maintainer-tools/ci/run_task.sh docsrs
 
-  Tests:
-    name: Tests
+  Bench:
+    name: Bench - nightly toolchain
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        include:
-          - rust: stable
-          - rust: beta
-          - rust: nightly
-          - rust: "1.56.1"
+        dep: [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
+          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 bench
+
+  Format:                       #  1 jobs, run cargo fmt directly.
+    name: Format - nightly toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - name: "Checkout repo"
+        uses: actions/checkout@v4
+      - name: "Select toolchain"
+        uses: dtolnay/rust-toolchain@nightly
+      - name: "Install rustfmt"
+        run: rustup component add rustfmt
+      - name: "Check formatting"
+        run: cargo +nightly fmt --all -- --check
+
+  Int-tests:
+    name: Integration tests
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout Crate
         uses: actions/checkout@v2
@@ -68,13 +192,10 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: ${{ matrix.rust }}
+          toolchain: stable
           override: true
-      - name: Running cargo
-        env:
-          DO_FEATURE_MATRIX: true
-          DO_NO_STD: true
-        run: ./contrib/test.sh
+      - name: Running integration tests
+        run: ./contrib/integration_test.sh
 
   Embedded:
     runs-on: ubuntu-latest
diff --git a/Cargo-minimal.lock b/Cargo-minimal.lock
new file mode 100644
index 000000000..6a79a1a8a
--- /dev/null
+++ b/Cargo-minimal.lock
@@ -0,0 +1,584 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
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+checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac"
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+ "getrandom",
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+ "bitflags",
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+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
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+ "winapi",
+]
+
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+ "semver",
+]
+
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+ "bitcoin_hashes",
+ "rand",
+ "secp256k1-sys",
+ "serde",
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+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
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+
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+name = "winapi-x86_64-pc-windows-gnu"
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diff --git a/bitcoind-tests/tests/setup/test_util.rs b/bitcoind-tests/tests/setup/test_util.rs
index e3f2d3c9d..ffffe661c 100644
--- a/bitcoind-tests/tests/setup/test_util.rs
+++ b/bitcoind-tests/tests/setup/test_util.rs
@@ -87,7 +87,7 @@ fn setup_keys(
     let mut x_only_pks = vec![];
 
     for sk in &sks {
-        let keypair = bitcoin::secp256k1::Keypair::from_secret_key(&secp_sign, &sk);
+        let keypair = bitcoin::secp256k1::Keypair::from_secret_key(&secp_sign, sk);
         let (xpk, _parity) = XOnlyPublicKey::from_keypair(&keypair);
         x_only_keypairs.push(keypair);
         x_only_pks.push(xpk);
diff --git a/contrib/crates.sh b/contrib/crates.sh
new file mode 100755
index 000000000..6d1159582
--- /dev/null
+++ b/contrib/crates.sh
@@ -0,0 +1,8 @@
+# No shebang, this file should not be executed.
+# shellcheck disable=SC2148
+#
+# disable verify unused vars, despite the fact that they are used when sourced
+# shellcheck disable=SC2034
+
+# Crates in this workspace to test (excl. fuzz an integration-tests).
+CRATES=(".")                    # Non-workspaces don't have crates.
diff --git a/contrib/integration_test.sh b/contrib/integration_test.sh
new file mode 100755
index 000000000..75d948ebc
--- /dev/null
+++ b/contrib/integration_test.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+#
+# Run the integration tests using the binary in `bitcoind-tests/bin`.
+
+set -euo pipefail
+
+REPO_DIR=$(git rev-parse --show-toplevel)
+
+# Make all cargo invocations verbose.
+export CARGO_TERM_VERBOSE=true
+
+BITCOIND_EXE="$REPO_DIR/bitcoind-tests/bin/bitcoind" cargo test --verbose
diff --git a/contrib/pin.sh b/contrib/pin.sh
new file mode 100755
index 000000000..dd7c2227e
--- /dev/null
+++ b/contrib/pin.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+#
+# Do pinning as required for current MSRV.
+
+set -euo pipefail
+
+cargo update -p cc --precise 1.0.79
diff --git a/contrib/test.sh b/contrib/test.sh
deleted file mode 100755
index f87400c08..000000000
--- a/contrib/test.sh
+++ /dev/null
@@ -1,110 +0,0 @@
-#!/bin/sh
-
-set -ex
-
-FEATURES="compiler serde rand base64"
-
-cargo --version
-rustc --version
-
-# Cache the toolchain we are using.
-NIGHTLY=false
-MSRV=false
-if cargo --version | grep nightly; then
-    NIGHTLY=true
-elif cargo --version | grep "1\.56"; then
-    MSRV=true
-fi
-
-if [ "$MSRV" = true ]; then
-    cargo update -p cc --precise 1.0.79
-fi
-
-# Format if told to
-if [ "$DO_FMT" = true ]
-then
-    rustup component add rustfmt
-    cargo fmt -- --check
-fi
-
-# Test bitcoind integration tests if told to (this only works with the stable toolchain)
-if [ "$DO_BITCOIND_TESTS" = true ]; then
-    cd bitcoind-tests
-    BITCOIND_EXE="$(git rev-parse --show-toplevel)/bitcoind-tests/bin/bitcoind" \
-    cargo test --verbose
-
-    # Exit integration tests, do not run other tests.
-    exit 0
-fi
-
-# Defaults / sanity checks
-cargo test
-
-if [ "$DO_LINT" = true ]; then
-    clippy="cargo +nightly clippy"
-
-    $clippy --all-features --all-targets -- -D warnings
-    $clippy --all-targets -- -D warnings
-    $clippy --no-default-features --features=no-std --all-targets -- -D warnings
-fi
-
-if [ "$DO_FEATURE_MATRIX" = true ]
-then
-    # All features
-    cargo test --features="$FEATURES"
-
-    # Single features
-    for feature in ${FEATURES}
-    do
-        cargo test --features="$feature"
-    done
-
-    # Run all the examples
-    cargo build --examples
-    cargo run --example htlc --features=compiler
-    cargo run --example parse
-    cargo run --example sign_multisig
-    cargo run --example verify_tx > /dev/null
-    cargo run --example xpub_descriptors
-    cargo run --example taproot --features=compiler
-    cargo run --example psbt_sign_finalize --features=base64
-fi
-
-if [ "$DO_NO_STD" = true ]
-then
-  # Build no_std, to make sure that cfg(test) doesn't hide any issues
-  cargo build --verbose --no-default-features --features="no-std"
-
-  # Test no_std
-  cargo test --verbose --no-default-features --features="no-std"
-
-  # Build all features
-  cargo build --verbose --no-default-features --features="no-std $FEATURES"
-
-  # Build specific features
-  for feature in ${FEATURES}
-  do
-      cargo build --verbose --no-default-features --features="no-std $feature"
-  done
-fi
-
-# Bench if told to, only works with non-stable toolchain (nightly, beta).
-if [ "$DO_BENCH" = true ]
-then
-    if [ "$NIGHTLY" = false ]; then
-        if [ -n "$RUSTUP_TOOLCHAIN" ]; then
-            echo "RUSTUP_TOOLCHAIN is set to a non-nightly toolchain but DO_BENCH requires a nightly toolchain"
-        else
-            echo "DO_BENCH requires a nightly toolchain"
-        fi
-        exit 1
-    fi
-    RUSTFLAGS='--cfg=bench' cargo bench
-fi
-
-# Build the docs if told to (this only works with the nightly toolchain)
-if [ "$DO_DOCS" = true ]; then
-    RUSTDOCFLAGS="--cfg docsrs" cargo +nightly rustdoc --features="$FEATURES" -- -D rustdoc::broken-intra-doc-links
-fi
-
-exit 0
diff --git a/contrib/test_vars.sh b/contrib/test_vars.sh
new file mode 100644
index 000000000..337c4e921
--- /dev/null
+++ b/contrib/test_vars.sh
@@ -0,0 +1,19 @@
+# No shebang, this file should not be executed.
+# shellcheck disable=SC2148
+#
+# disable verify unused vars, despite the fact that they are used when sourced
+# shellcheck disable=SC2034
+
+# Test all these features with "std" enabled.
+FEATURES_WITH_STD="compiler trace serde rand base64"
+
+# Test all these features with "no-std" enabled.
+# rust-miniscript only: https://github.com/rust-bitcoin/rust-miniscript/issues/681
+FEATURES_WITH_NO_STD="compiler trace serde rand base64"
+
+# Test all these features without "std" enabled.
+FEATURES_WITHOUT_STD=""
+
+# Run these examples.
+# Note `examples/big` should not be run.
+EXAMPLES="htlc:std,compiler parse:std sign_multisig:std verify_tx:std xpub_descriptors:std taproot:std,compiler psbt_sign_finalize:std,base64"
diff --git a/contrib/update-lock-files.sh b/contrib/update-lock-files.sh
new file mode 100755
index 000000000..02ba1f7c8
--- /dev/null
+++ b/contrib/update-lock-files.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+#
+# Update the minimal/recent lock file
+
+set -euo pipefail
+
+for file in Cargo-minimal.lock Cargo-recent.lock; do
+    cp --force "$file" Cargo.lock
+    cargo check
+    cp --force Cargo.lock "$file"
+done
diff --git a/contrib/whitelist_deps.sh b/contrib/whitelist_deps.sh
new file mode 100644
index 000000000..74619acdf
--- /dev/null
+++ b/contrib/whitelist_deps.sh
@@ -0,0 +1,8 @@
+# No shebang, this file should not be executed.
+# shellcheck disable=SC2148
+#
+# disable verify unused vars, despite the fact that they are used when sourced
+# shellcheck disable=SC2034
+
+# Remove once we upgrade to `bitcoin v0.32.0`.
+DUPLICATE_DEPS=("bech32")
diff --git a/justfile b/justfile
index 91c122a09..7190407ab 100644
--- a/justfile
+++ b/justfile
@@ -37,3 +37,7 @@ sane: fmt-check lint
 
   # doctests don't get run from workspace root with `cargo test`.
   cargo test --quiet --doc || exit 1
+
+# Update the recent and minimal lock files.
+update-lock-files:
+  contrib/update-lock-files.sh