diff --git a/.flake8 b/.flake8
deleted file mode 100644
index 1548c564..00000000
--- a/.flake8
+++ /dev/null
@@ -1,30 +0,0 @@
-[flake8]
-ignore = BLK100
-
-# flake8-quotes:
-# Use double quotes as our default to comply with black, we like it and
-# don't want to use single quotes anymore.
-# We would love to configure this via our pyproject.toml but flake8-3.8 does
-# not support it yet.
-inline-quotes = double
-multiline-quotes = double
-docstring-quotes = double
-avoid-escape = True
-
-# flake8-docstrings
-# Use the Google Python Styleguide Docstring format.
-docstring-convention = google
-
-exclude = 
-    .git,
-    __pycache__,
-    docs/source/conf.py,
-    old,
-    build,
-    dist,
-    venv,
-    docs,
-    examples,
-    test
-
-max-line-length = 120
diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index 6daaf15b..20d1bfc2 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -23,6 +23,9 @@ jobs:
         poetry --version
         poetry install
 
+    - name: Install ruff
+      run: python -m pip install ruff==0.16.9
+
     - name: Run tests and linters
       run: |
         #!/bin/sh -e
@@ -35,4 +38,4 @@ jobs:
 
         ${PREFIX}black photoshop --check
         ${PREFIX}isort --check-only photoshop
-        ${PREFIX}flake8 photoshop --max-line-length 120
+        ruff check photoshop
diff --git a/.hound.yml b/.hound.yml
deleted file mode 100644
index faeeeeb9..00000000
--- a/.hound.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-python:
-  enabled: true
-
-flake8:
-  enabled: true
-  config_file: .flake8
-
-fail_on_violations: true
diff --git a/.pylintrc b/.pylintrc
deleted file mode 100644
index c205a4ef..00000000
--- a/.pylintrc
+++ /dev/null
@@ -1,7 +0,0 @@
-# Generated Pylint configuration file that disables default output tables.
-
-[MESSAGES CONTROL]
-disable=RP0001,RP0002,RP0003,RP0101,RP0401,RP0402,RP0701,RP0801,C0103,R0903
-
-[REPORTS]
-output-format=text
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 1ccbd628..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-language: python
-python:
-    - "3.8"
-    - "3.9"
-    - "3.10"
-before_script:
-    - pip install poetry
-    - poetry install
-script:
-    - poetry run codecov
-
-cache: pip
-before_cache:
-  - rm -f $HOME/.cache/pip/log/debug.log
diff --git a/pyproject.toml b/pyproject.toml
index 6c29e7bc..c0f7419e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -110,3 +110,33 @@ force_single_line = true
 # All project unrelated unknown imports belong to third-party.
 default_section = "THIRDPARTY"
 skip_glob = "*/docs/conf.py"
+
+# Linting lives here and nowhere else. This replaces the deleted .flake8, which
+# flake8 could not express in pyproject.toml (support landed in flake8 5).
+[tool.ruff]
+line-length = 120
+target-version = "py38"
+extend-exclude = [
+    "docs/source/conf.py",
+    "old",
+    "build",
+    "dist",
+    "venv",
+    "docs",
+    "examples",
+    "test",
+]
+
+[tool.ruff.lint]
+# Behaviour-preserving port of .flake8. The old file also configured
+# flake8-docstrings (google) and flake8-quotes, but neither plugin was installed
+# in CI, so only pycodestyle/pyflakes rules ever fired. Quote rules are enabled
+# here because the codebase already satisfies them; the docstring rules are not,
+# see the migration PR for the measured violation count.
+select = ["E", "W", "F", "Q"]
+
+[tool.ruff.lint.flake8-quotes]
+inline-quotes = "double"
+multiline-quotes = "double"
+docstring-quotes = "double"
+avoid-escape = true