CI: Use the new cargo rbmt tool

diff --git a/.github/actions/prepare/action.yml b/.github/actions/prepare/action.yml
new file mode 100644
index 00000000..ff615d17
--- /dev/null
+++ b/.github/actions/prepare/action.yml
@@ -0,0 +1,36 @@
+name: 'Prepare Rust Environment'
+description: 'Setup Rust toolchain and install RBMT'
+inputs:
+  toolchain:
+    description: 'Rust toolchain to use (nightly reads from nightly-version file)'
+    required: false
+    default: 'stable'
+  components:
+    description: 'Rust components to install (e.g., clippy, rustfmt)'
+    required: false
+    default: ''
+runs:
+  using: "composite"
+  steps:
+    - name: "Determine toolchain"
+      id: toolchain
+      shell: bash
+      run: |
+        if [ "${INPUTS_TOOLCHAIN}" = "nightly" ]; then
+          TOOLCHAIN="$(cat nightly-version)"
+        else
+          TOOLCHAIN="${INPUTS_TOOLCHAIN}"
+        fi
+        echo "version=$TOOLCHAIN" >> $GITHUB_OUTPUT
+      env:
+        INPUTS_TOOLCHAIN: ${{ inputs.toolchain }}
+
+    - name: "Setup requested toolchain"
+      uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c # v1.15.2
+      with:
+        toolchain: stable,${{ steps.toolchain.outputs.version }}
+        components: ${{ inputs.components }}
+
+    - name: "Install RBMT"
+      shell: bash
+      run: cargo +stable install --git https://github.com/rust-bitcoin/rust-bitcoin-maintainer-tools.git --rev "$(cat rbmt-version)" cargo-rbmt --locked
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index b6a9f5e6..f1bd4283 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -17,7 +17,6 @@ jobs:
       contents: read
     outputs:
       nightly_version: ${{ steps.read_toolchain.outputs.nightly_version }}
-      maintainer_tools_version: ${{ steps.read_toolchain.outputs.maintainer_tools_version }}
     steps:
       - name: "Checkout repo"
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
@@ -27,11 +26,9 @@ jobs:
         id: read_toolchain
         run: |
           echo "nightly_version=$(cat nightly-version)" >> $GITHUB_OUTPUT
-          echo "maintainer_tools_version=$(cat maintainer-tools-version)" >> $GITHUB_OUTPUT
 
   Stable:                       # 2 jobs, one per manifest.
     name: Test - stable toolchain
-    needs: Prepare
     runs-on: ubuntu-24.04
     permissions:
       contents: read
@@ -40,27 +37,17 @@ jobs:
       matrix:
         dep: [minimal, recent]
     steps:
-      - name: "Checkout repo"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
-      - name: "Checkout maintainer tools"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: ./.github/actions/prepare
         with:
-          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
-          ref: ${{ needs.Prepare.outputs.maintainer_tools_version }}
-          path: maintainer-tools
-          persist-credentials: false
-      - name: "Select toolchain"
-        uses: dtolnay/rust-toolchain@5d458579430fc14a04a08a1e7d3694f545e91ce6 # stable
-      - name: "Set dependencies"
-        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
-      - name: "Run test script"
-        run: ./maintainer-tools/ci/run_task.sh stable
+          toolchain: stable
+      - name: "Run tests"
+        run: cargo rbmt test stable --lock-file ${{ matrix.dep }}
 
   Nightly:                      # 2 jobs, one per manifest.
     name: Test - nightly toolchain
-    needs: Prepare
     runs-on: ubuntu-24.04
     permissions:
       contents: read
@@ -69,29 +56,17 @@ jobs:
       matrix:
         dep: [minimal, recent]
     steps:
-      - name: "Checkout repo"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
-      - name: "Checkout maintainer tools"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: ./.github/actions/prepare
         with:
-          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
-          ref: ${{ needs.Prepare.outputs.maintainer_tools_version }}
-          path: maintainer-tools
-          persist-credentials: false
-      - name: "Select toolchain"
-        uses: dtolnay/rust-toolchain@e97e2d8cc328f1b50210efc529dca0028893a2d9 # v1
-        with:
-          toolchain: ${{ needs.Prepare.outputs.nightly_version }}
-      - name: "Set dependencies"
-        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
-      - name: "Run test script"
-        run: ./maintainer-tools/ci/run_task.sh nightly
+          toolchain: nightly
+      - name: "Run tests"
+        run: cargo rbmt test nightly --lock-file ${{ matrix.dep }}
 
   MSRV:                         # 2 jobs, one per manifest.
     name: Test - MSRV toolchain
-    needs: Prepare
     runs-on: ubuntu-24.04
     permissions:
       contents: read
@@ -100,35 +75,17 @@ jobs:
       matrix:
         dep: [minimal, recent]
     steps:
-      - name: "Checkout repo"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
-      - name: "Checkout maintainer tools"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-        with:
-          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
-          ref: ${{ needs.Prepare.outputs.maintainer_tools_version }}
-          path: maintainer-tools
-          persist-credentials: false
-      - name: "Free disk space"
-        uses: endersonmenezes/free-disk-space@6c4664f43348c8c7011b53488d5ca65e9fc5cd1a # v3.0.0
-        with:
-          remove_android: true
-          remove_dotnet: true
-          remove_haskell: true
-      - name: "Select toolchain"
-        uses: dtolnay/rust-toolchain@5d458579430fc14a04a08a1e7d3694f545e91ce6 # stable
+      - uses: ./.github/actions/prepare
         with:
           toolchain: "1.74.0"
-      - name: "Set dependencies"
-        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
-      - name: "Run test script"
-        run: ./maintainer-tools/ci/run_task.sh msrv
+      - name: "Run tests"
+        run: cargo rbmt test msrv --lock-file ${{ matrix.dep }}
 
   Lint:
     name: Lint - nightly toolchain
-    needs: Prepare
     runs-on: ubuntu-24.04
     permissions:
       contents: read
@@ -137,31 +94,18 @@ jobs:
       matrix:
         dep: [recent]
     steps:
-      - name: "Checkout repo"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
-      - name: "Checkout maintainer tools"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: ./.github/actions/prepare
         with:
-          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
-          ref: ${{ needs.Prepare.outputs.maintainer_tools_version }}
-          path: maintainer-tools
-          persist-credentials: false
-      - name: "Select toolchain"
-        uses: dtolnay/rust-toolchain@e97e2d8cc328f1b50210efc529dca0028893a2d9 # v1
-        with:
-          toolchain: ${{ needs.Prepare.outputs.nightly_version }}
-      - name: "Install clippy"
-        run: rustup component add clippy
-      - name: "Set dependencies"
-        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
-      - name: "Run test script"
-        run: ./maintainer-tools/ci/run_task.sh lint
+          toolchain: nightly
+          components: clippy
+      - name: "Run lint"
+        run: cargo rbmt lint
 
   Docs:
     name: Docs - stable toolchain
-    needs: Prepare
     runs-on: ubuntu-24.04
     permissions:
       contents: read
@@ -170,27 +114,17 @@ jobs:
       matrix:
         dep: [recent]
     steps:
-      - name: "Checkout repo"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
-      - name: "Checkout maintainer tools"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: ./.github/actions/prepare
         with:
-          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
-          ref: ${{ needs.Prepare.outputs.maintainer_tools_version }}
-          path: maintainer-tools
-          persist-credentials: false
-      - name: "Select toolchain"
-        uses: dtolnay/rust-toolchain@5d458579430fc14a04a08a1e7d3694f545e91ce6 # stable
-      - name: "Set dependencies"
-        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
-      - name: "Run test script"
-        run: ./maintainer-tools/ci/run_task.sh docs
+          toolchain: stable
+      - name: "Build docs"
+        run: cargo rbmt docs
 
   Docsrs:
     name: Docs - nightly toolchain
-    needs: Prepare
     runs-on: ubuntu-24.04
     permissions:
       contents: read
@@ -199,29 +133,17 @@ jobs:
       matrix:
         dep: [recent]
     steps:
-      - name: "Checkout repo"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-        with:
-          persist-credentials: false
-      - name: "Checkout maintainer tools"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
-          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
-          ref: ${{ needs.Prepare.outputs.maintainer_tools_version }}
-          path: maintainer-tools
           persist-credentials: false
-      - name: "Select toolchain"
-        uses: dtolnay/rust-toolchain@e97e2d8cc328f1b50210efc529dca0028893a2d9 # v1
+      - uses: ./.github/actions/prepare
         with:
-          toolchain: ${{ needs.Prepare.outputs.nightly_version }}
-      - name: "Set dependencies"
-        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
-      - name: "Run test script"
-        run: ./maintainer-tools/ci/run_task.sh docsrs
+          toolchain: nightly
+      - name: "Build docs.rs docs"
+        run: cargo rbmt docsrs
 
   Bench:
     name: Bench - nightly toolchain
-    needs: Prepare
     runs-on: ubuntu-24.04
     permissions:
       contents: read
@@ -230,25 +152,14 @@ jobs:
       matrix:
         dep: [recent]
     steps:
-      - name: "Checkout repo"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
-      - name: "Checkout maintainer tools"
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: ./.github/actions/prepare
         with:
-          repository: rust-bitcoin/rust-bitcoin-maintainer-tools
-          ref: ${{ needs.Prepare.outputs.maintainer_tools_version }}
-          path: maintainer-tools
-          persist-credentials: false
-      - name: "Select toolchain"
-        uses: dtolnay/rust-toolchain@e97e2d8cc328f1b50210efc529dca0028893a2d9 # v1
-        with:
-          toolchain: ${{ needs.Prepare.outputs.nightly_version }}
-      - name: "Set dependencies"
-        run: cp Cargo-${{ matrix.dep }}.lock Cargo.lock
-      - name: "Run test script"
-        run: ./maintainer-tools/ci/run_task.sh bench
+          toolchain: nightly
+      - name: "Run benches"
+        run: cargo rbmt bench --lock-file ${{ matrix.dep }}
 
   Arch32bit:
     name: Test 32-bit version
@@ -444,7 +355,7 @@ jobs:
           contrib/generate-primitives-re-export-test.sh && (cd ./primitives && cargo test --all-features)
           contrib/generate-bitcoin-re-export-test.sh && (cd ./bitcoin && cargo test --all-features)
 
-  DiffMutants: 
+  DiffMutants:
     name: Check cargo mutants in diff - stable toolchain
     runs-on: ubuntu-24.04
     steps:
diff --git a/addresses/contrib/extra_lints.sh b/addresses/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/addresses/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/addresses/contrib/test_vars.sh b/addresses/contrib/test_vars.sh
deleted file mode 100644
index 92dc0940..00000000
--- a/addresses/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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=""
-
-# Test all these features without "std" enabled.
-FEATURES_WITHOUT_STD="alloc"
-
-# Run these examples.
-EXAMPLES=""
diff --git a/addresses/rbmt.toml b/addresses/rbmt.toml
new file mode 100644
index 00000000..a44a78fd
--- /dev/null
+++ b/addresses/rbmt.toml
@@ -0,0 +1,14 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = []
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["alloc"]
diff --git a/base58/contrib/extra_lints.sh b/base58/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/base58/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/base58/contrib/test_vars.sh b/base58/contrib/test_vars.sh
deleted file mode 100644
index 92dc0940..00000000
--- a/base58/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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=""
-
-# Test all these features without "std" enabled.
-FEATURES_WITHOUT_STD="alloc"
-
-# Run these examples.
-EXAMPLES=""
diff --git a/base58/rbmt.toml b/base58/rbmt.toml
new file mode 100644
index 00000000..a44a78fd
--- /dev/null
+++ b/base58/rbmt.toml
@@ -0,0 +1,14 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = []
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["alloc"]
diff --git a/bip158/contrib/extra_lints.sh b/bip158/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/bip158/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/bip158/contrib/test_vars.sh b/bip158/contrib/test_vars.sh
deleted file mode 100644
index 88e2d26e..00000000
--- a/bip158/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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=""
-
-# Test all these features without "std" enabled.
-FEATURES_WITHOUT_STD=""
-
-# Run these examples.
-EXAMPLES=""
diff --git a/bip158/rbmt.toml b/bip158/rbmt.toml
new file mode 100644
index 00000000..293e798c
--- /dev/null
+++ b/bip158/rbmt.toml
@@ -0,0 +1,14 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = []
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = []
diff --git a/bitcoin/contrib/extra_lints.sh b/bitcoin/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/bitcoin/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/bitcoin/contrib/extra_tests.sh b/bitcoin/contrib/extra_tests.sh
deleted file mode 100755
index d4c785c6..00000000
--- a/bitcoin/contrib/extra_tests.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env bash
-
-set -ex
-
-cargo run --locked --example bip32 7934c09359b234e076b9fa5a1abfd38e3dc2a9939745b7cc3c22a48d831d14bd
-cargo run --locked --no-default-features --example bip32 7934c09359b234e076b9fa5a1abfd38e3dc2a9939745b7cc3c22a48d831d14bd
diff --git a/bitcoin/contrib/test_vars.sh b/bitcoin/contrib/test_vars.sh
deleted file mode 100644
index 6b2d09e8..00000000
--- a/bitcoin/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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="rand serde secp-recovery bitcoinconsensus base64 arbitrary"
-
-# Test all these features without "std" or "alloc" enabled.
-FEATURES_WITHOUT_STD="rand serde secp-recovery bitcoinconsensus base64 arbitrary"
-
-# Run these examples.
-EXAMPLES="ecdsa-psbt:std,bitcoinconsensus sign-tx-segwit-v0:rand,std sign-tx-taproot:rand,std taproot-psbt:bitcoinconsensus,rand,std sighash:std serde:std,serde"
diff --git a/bitcoin/rbmt.toml b/bitcoin/rbmt.toml
new file mode 100644
index 00000000..d9c30d70
--- /dev/null
+++ b/bitcoin/rbmt.toml
@@ -0,0 +1,28 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = [
+    "bip32",
+    "bip32:-",
+    "ecdsa-psbt:std bitcoinconsensus",
+    "sign-tx-segwit-v0:rand std",
+    "sign-tx-taproot:rand std",
+    "taproot-psbt:bitcoinconsensus rand std",
+    "sighash:std",
+    "serde:std serde",
+]
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = ["rand", "serde", "secp-recovery", "bitcoinconsensus", "base64", "arbitrary"]
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["rand", "serde", "secp-recovery", "bitcoinconsensus", "base64", "arbitrary"]
+
+[lint]
+allowed_duplicates = [
+    "hex-conservative",
+]
diff --git a/chacha20_poly1305/contrib/extra_lints.sh b/chacha20_poly1305/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/chacha20_poly1305/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/chacha20_poly1305/contrib/test_vars.sh b/chacha20_poly1305/contrib/test_vars.sh
deleted file mode 100644
index 7aeb1ecc..00000000
--- a/chacha20_poly1305/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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 these features with "std" enabled.
-FEATURES_WITH_STD=""
-
-# Test these features without "std" enabled.
-FEATURES_WITHOUT_STD="alloc"
-
-# Run these examples.
-EXAMPLES=""
diff --git a/chacha20_poly1305/rbmt.toml b/chacha20_poly1305/rbmt.toml
new file mode 100644
index 00000000..a44a78fd
--- /dev/null
+++ b/chacha20_poly1305/rbmt.toml
@@ -0,0 +1,14 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = []
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["alloc"]
diff --git a/consensus_encoding/contrib/extra_lints.sh b/consensus_encoding/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/consensus_encoding/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/consensus_encoding/contrib/test_vars.sh b/consensus_encoding/contrib/test_vars.sh
deleted file mode 100644
index b7f17173..00000000
--- a/consensus_encoding/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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=""
-
-# Test all these features without "std" enabled.
-FEATURES_WITHOUT_STD="alloc"
-
-# Run these examples.
-EXAMPLES="encoder:alloc"
diff --git a/consensus_encoding/rbmt.toml b/consensus_encoding/rbmt.toml
new file mode 100644
index 00000000..d8d3d998
--- /dev/null
+++ b/consensus_encoding/rbmt.toml
@@ -0,0 +1,14 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = ["encoder:alloc"]
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = []
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["alloc"]
diff --git a/crypto/contrib/extra_lints.sh b/crypto/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/crypto/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/crypto/contrib/test_vars.sh b/crypto/contrib/test_vars.sh
deleted file mode 100644
index 92dc0940..00000000
--- a/crypto/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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=""
-
-# Test all these features without "std" enabled.
-FEATURES_WITHOUT_STD="alloc"
-
-# Run these examples.
-EXAMPLES=""
diff --git a/crypto/rbmt.toml b/crypto/rbmt.toml
new file mode 100644
index 00000000..a44a78fd
--- /dev/null
+++ b/crypto/rbmt.toml
@@ -0,0 +1,14 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = []
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["alloc"]
diff --git a/fuzz/rbmt.toml b/fuzz/rbmt.toml
new file mode 100644
index 00000000..4b85446c
--- /dev/null
+++ b/fuzz/rbmt.toml
@@ -0,0 +1,4 @@
+[lint]
+allowed_duplicates = [
+    "hex-conservative",
+]
diff --git a/hashes/contrib/extra_lints.sh b/hashes/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/hashes/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/hashes/contrib/test_vars.sh b/hashes/contrib/test_vars.sh
deleted file mode 100644
index efcd3dcf..00000000
--- a/hashes/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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="serde small-hash"
-
-# Test all these features without "std" enabled.
-FEATURES_WITHOUT_STD="alloc serde small-hash"
-
-# Run these examples.
-EXAMPLES=""
diff --git a/hashes/rbmt.toml b/hashes/rbmt.toml
new file mode 100644
index 00000000..735cbbac
--- /dev/null
+++ b/hashes/rbmt.toml
@@ -0,0 +1,14 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = ["serde", "small-hash"]
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["alloc", "serde", "small-hash"]
diff --git a/internals/contrib/extra_lints.sh b/internals/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/internals/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/internals/contrib/test_vars.sh b/internals/contrib/test_vars.sh
deleted file mode 100644
index ad0a3f27..00000000
--- a/internals/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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="serde"
-
-# Test all these features without "std" enabled.
-FEATURES_WITHOUT_STD="alloc serde"
-
-# Run these examples.
-EXAMPLES=""
diff --git a/internals/rbmt.toml b/internals/rbmt.toml
new file mode 100644
index 00000000..4d5687c6
--- /dev/null
+++ b/internals/rbmt.toml
@@ -0,0 +1,14 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = ["serde"]
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["alloc", "serde"]
diff --git a/io/contrib/extra_lints.sh b/io/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/io/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/io/contrib/test_vars.sh b/io/contrib/test_vars.sh
deleted file mode 100644
index 279c2507..00000000
--- a/io/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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="hashes"
-
-# Test all these features without "std" enabled.
-FEATURES_WITHOUT_STD="alloc hashes"
-
-# Run these examples.
-EXAMPLES=""
diff --git a/io/rbmt.toml b/io/rbmt.toml
new file mode 100644
index 00000000..b47ff04c
--- /dev/null
+++ b/io/rbmt.toml
@@ -0,0 +1,14 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = ["hashes"]
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["alloc", "hashes"]
diff --git a/maintainer-tools-version b/maintainer-tools-version
deleted file mode 100644
index f9a7d00f..00000000
--- a/maintainer-tools-version
+++ /dev/null
@@ -1 +0,0 @@
-e7ad5b2aa5f742093d8e07d4a2a7d415254cf6f4
diff --git a/network/contrib/extra_lints.sh b/network/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/network/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/network/contrib/test_vars.sh b/network/contrib/test_vars.sh
deleted file mode 100644
index 92dc0940..00000000
--- a/network/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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=""
-
-# Test all these features without "std" enabled.
-FEATURES_WITHOUT_STD="alloc"
-
-# Run these examples.
-EXAMPLES=""
diff --git a/network/rbmt.toml b/network/rbmt.toml
new file mode 100644
index 00000000..a44a78fd
--- /dev/null
+++ b/network/rbmt.toml
@@ -0,0 +1,14 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = []
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["alloc"]
diff --git a/p2p/contrib/extra_lints.sh b/p2p/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/p2p/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/p2p/contrib/test_vars.sh b/p2p/contrib/test_vars.sh
deleted file mode 100644
index 701c4c89..00000000
--- a/p2p/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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=""
-
-# Test all these features without "std" enabled.
-FEATURES_WITHOUT_STD="arbitrary"
-
-# Run these examples.
-EXAMPLES=""
diff --git a/p2p/rbmt.toml b/p2p/rbmt.toml
new file mode 100644
index 00000000..c8426f5a
--- /dev/null
+++ b/p2p/rbmt.toml
@@ -0,0 +1,19 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = ["arbitrary"]
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["arbitrary"]
+
+[lint]
+allowed_duplicates = [
+    "hex-conservative",
+]
diff --git a/primitives/contrib/extra_lints.sh b/primitives/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/primitives/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/primitives/contrib/test_vars.sh b/primitives/contrib/test_vars.sh
deleted file mode 100644
index 159713bb..00000000
--- a/primitives/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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 these features with "std" enabled.
-FEATURES_WITH_STD="serde arbitrary"
-
-# Test these features without "std" enabled.
-FEATURES_WITHOUT_STD="alloc serde arbitrary"
-
-# Run these examples.
-EXAMPLES=""
diff --git a/primitives/rbmt.toml b/primitives/rbmt.toml
new file mode 100644
index 00000000..183d3c95
--- /dev/null
+++ b/primitives/rbmt.toml
@@ -0,0 +1,19 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = ["serde", "arbitrary"]
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["alloc", "serde", "arbitrary"]
+
+[lint]
+allowed_duplicates = [
+    "hex-conservative",
+]
diff --git a/rbmt-version b/rbmt-version
new file mode 100644
index 00000000..ed695f88
--- /dev/null
+++ b/rbmt-version
@@ -0,0 +1 @@
+b5a97cc14517f12db07caa4b90822ef28f7f2420
diff --git a/units/contrib/extra_lints.sh b/units/contrib/extra_lints.sh
deleted file mode 100755
index 5e7f0c94..00000000
--- a/units/contrib/extra_lints.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-# No shebang, this file should not be executed.
-# shellcheck disable=SC2148
-
-cargo clippy --all-targets --no-default-features --keep-going -- -D warnings
diff --git a/units/contrib/test_vars.sh b/units/contrib/test_vars.sh
deleted file mode 100644
index 91030c5d..00000000
--- a/units/contrib/test_vars.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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="serde arbitrary"
-
-# Test all these features without "std" enabled.
-FEATURES_WITHOUT_STD="alloc serde arbitrary"
-
-# Run these examples.
-EXAMPLES=""
diff --git a/units/rbmt.toml b/units/rbmt.toml
new file mode 100644
index 00000000..cd5e44fc
--- /dev/null
+++ b/units/rbmt.toml
@@ -0,0 +1,14 @@
+# Configuration for rbmt (Rust Bitcoin Maintainer Tools)
+
+[test]
+# Examples to run with specific features enabled.
+# Format: "example_name:feature1 feature2"
+examples = []
+
+# Features to test with the conventional `std` feature enabled.
+# Tests each feature alone with std, all pairs, and all together.
+features_with_std = ["serde", "arbitrary"]
+
+# Features to test without the `std` feature.
+# Tests each feature alone, all pairs, and all together.
+features_without_std = ["alloc", "serde", "arbitrary"]