minor version bump

add 2.4.0 section to CHANGELOG

upd README with HeadAmp class

closes #10

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "xair-api"
-version = "2.3.3a0"
+version = "2.4.0"
 description = "Remote control Behringer X-Air | Midas MR mixers through OSC"
 authors = ["onyx-and-iris <code@onyxandiris.online>"]
 license = "MIT"
@@ -15,9 +15,9 @@ tomli = { version = "^2.0.1", python = "<3.11" }
 [tool.poetry.group.dev.dependencies]
 pytest = "^7.4.4"
 pytest-randomly = "^3.12.0"
-black = ">=22.6,<25.0"
-isort = "^5.10.1"
-tox = "^4.12.1"
+ruff = "^0.8.6"
+tox = "^4.23.2"
+virtualenv-pyenv = "^0.5.0"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]
@@ -36,8 +36,100 @@ legacy_tox_ini = """
 envlist = py310,py311,py312
 
 [testenv]
+setenv = VIRTUALENV_DISCOVERY=pyenv
 allowlist_externals = poetry
 commands =
   poetry install -v
   poetry run pytest tests/
 """
+
+[tool.ruff]
+lint.select = [
+    "E",
+    "F",
+]
+lint.ignore = [
+    "E501",
+]
+lint.fixable = [
+    "A",
+    "B",
+    "C",
+    "D",
+    "E",
+    "F",
+    "G",
+    "I",
+    "N",
+    "Q",
+    "S",
+    "T",
+    "W",
+    "ANN",
+    "ARG",
+    "BLE",
+    "COM",
+    "DJ",
+    "DTZ",
+    "EM",
+    "ERA",
+    "EXE",
+    "FBT",
+    "ICN",
+    "INP",
+    "ISC",
+    "NPY",
+    "PD",
+    "PGH",
+    "PIE",
+    "PL",
+    "PT",
+    "PTH",
+    "PYI",
+    "RET",
+    "RSE",
+    "RUF",
+    "SIM",
+    "SLF",
+    "TCH",
+    "TID",
+    "TRY",
+    "UP",
+    "YTT",
+]
+lint.unfixable = []
+exclude = [
+    ".bzr",
+    ".direnv",
+    ".eggs",
+    ".git",
+    ".git-rewrite",
+    ".hg",
+    ".mypy_cache",
+    ".nox",
+    ".pants.d",
+    ".pytype",
+    ".ruff_cache",
+    ".svn",
+    ".tox",
+    ".venv",
+    "__pypackages__",
+    "_build",
+    "buck-out",
+    "build",
+    "dist",
+    "node_modules",
+    "venv",
+]
+line-length = 88
+lint.dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
+target-version = "py312"
+
+[tool.ruff.lint.mccabe]
+max-complexity = 10
+
+[tool.ruff.lint.per-file-ignores]
+"__init__.py" = [
+    "E402",
+    "F401",
+]