diff --git a/.codecov.yml b/.codecov.yml
index 341e4255..94667d94 100644
--- a/.codecov.yml
+++ b/.codecov.yml
@@ -1,3 +1,4 @@
+---
 codecov:
   branch: master
 
@@ -5,7 +6,7 @@ coverage:
   range: "95..100"
 
   status:
-    project: no
+    project: false
 
 flags:
   library:
diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
index 7d50a474..913b2459 100644
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -1,5 +1,7 @@
+---
 # These are supported funding model platforms
 
+# yamllint disable rule:comments rule:line-length
 github: [thehesiod, terrycain] # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
 patreon: # Replace with a single Patreon username
 open_collective: # Replace with a single Open Collective username
@@ -10,3 +12,4 @@ liberapay: # Replace with a single Liberapay username
 issuehunt: # Replace with a single IssueHunt username
 otechie: # Replace with a single Otechie username
 custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
+# yamllint enable rule:comments rule:line-length
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index a5c0e272..6f7084c7 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,3 +1,4 @@
+---
 # To get started with Dependabot version updates, you'll need to specify which
 # package ecosystems to update and where the package manifests are located.
 # Please see the documentation for all configuration options:
@@ -5,12 +6,12 @@
 
 version: 2
 updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "daily"
+- package-ecosystem: "github-actions"
+  directory: "/"
+  schedule:
+    interval: "daily"
 
-  - package-ecosystem: "pip"
-    directory: "/"
-    schedule:
-      interval: "daily"
+- package-ecosystem: "pip"
+  directory: "/"
+  schedule:
+    interval: "daily"
diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
index 34d4a6fa..28bfaa62 100644
--- a/.github/workflows/pre-commit.yml
+++ b/.github/workflows/pre-commit.yml
@@ -1,3 +1,4 @@
+---
 name: "Pre-commit"
 
 on:
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index 5149e3ed..f59565d1 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -1,4 +1,6 @@
-# This workflow warns and then closes issues and PRs that have had no activity for a specified amount of time.
+---
+# This workflow warns and then closes issues and PRs that have had no activity
+# for a specified amount of time.
 #
 # You can adjust the behavior by modifying this file.
 # For more information, see:
@@ -7,7 +9,7 @@ name: Mark stale issues and pull requests
 
 on:
   schedule:
-    - cron: '31 21 * * *'
+  - cron: '31 21 * * *'
   workflow_dispatch:
 
 jobs:
@@ -19,8 +21,14 @@ jobs:
       pull-requests: write
 
     steps:
-      - uses: actions/stale@v5
-        with:
-          stale-issue-message: 'This issue has been marked as stale because it has been inactive for more than 60 days. Please update this pull request or it will be automatically closed in 7 days.'
-          stale-pr-message: 'This pull request has been marked as stale because it has been inactive for more than 60 days. Please update this pull request or it will be automatically closed in 7 days.'
-          operations-per-run: '60'
+    - uses: actions/stale@v5
+      with:
+        stale-issue-message: >-
+          This issue has been marked as stale because it has been inactive for
+          more than 60 days. Please update this pull request or it will be
+          automatically closed in 7 days.
+        stale-pr-message: >-
+          This pull request has been marked as stale because it has been
+          inactive for more than 60 days. Please update this pull request or
+          it will be automatically closed in 7 days.
+        operations-per-run: '60'
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index c29c54bc..1a0d06a1 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,17 +1,23 @@
+---
 repos:
-  - repo: 'https://github.com/pre-commit/pre-commit-hooks'
-    rev: v4.5.0
-    hooks:
-      - id: check-yaml
-      - id: end-of-file-fixer
-      - id: trailing-whitespace
-  - repo: 'https://github.com/PyCQA/isort'
-    rev: 5.12.0
-    hooks:
-      - id: isort
-  - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.4.8
-    hooks:
-      - id: ruff
-        args: [ --fix ]
-      - id: ruff-format
+- repo: 'https://github.com/pre-commit/pre-commit-hooks'
+  rev: v4.5.0
+  hooks:
+  - id: check-yaml
+  - id: end-of-file-fixer
+  - id: trailing-whitespace
+- repo: 'https://github.com/PyCQA/isort'
+  rev: 5.12.0
+  hooks:
+  - id: isort
+- repo: https://github.com/astral-sh/ruff-pre-commit
+  rev: v0.4.8
+  hooks:
+  - id: ruff
+    args: [--fix]
+  - id: ruff-format
+- repo: https://github.com/adrienverge/yamllint.git
+  rev: v1.35.1
+  hooks:
+  - id: yamllint
+    args: [--strict]
diff --git a/.readthedocs.yml b/.readthedocs.yml
index afe7ba03..4ae9395e 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,3 +1,4 @@
+---
 version: 2
 
 build:
@@ -10,9 +11,9 @@ sphinx:
 
 python:
   install:
-    - path: .
-    - requirements: docs/requirements.txt
+  - path: .
+  - requirements: docs/requirements.txt
 
 formats:
-  - htmlzip
-  - epub
+- htmlzip
+- epub
diff --git a/.yamllint b/.yamllint
new file mode 100644
index 00000000..338ef310
--- /dev/null
+++ b/.yamllint
@@ -0,0 +1,15 @@
+---
+extends: default
+
+rules:
+  indentation:
+    level: error
+    indent-sequences: false
+  truthy:
+    allowed-values:
+    - >-
+      false
+    - >-
+      true
+    - >-  # Allow "on" key name in GHA CI/CD workflow definitions
+      on