diff --git a/build_utils/version.py b/build_utils/version.py
index cab731833..b38f1bd3a 100644
--- a/build_utils/version.py
+++ b/build_utils/version.py
@@ -1,24 +1,45 @@
 from pathlib import Path
 import subprocess
 import sys
+import os
 
 gits = ["git"]
 if sys.platform == "win32":
     gits += ["git.cmd", "git.exe"]
 
+match sys.argv:
+    case [_, "--dist"]:
+        type_ = "dist"
+    case [_, "--dump"]:
+        type_ = "dump"
+    case [_]:
+        type_ = "print"
+
+version_file = Path(__file__).parent.parent / "euphonic" / "version.py"
+
 for gitcmd in gits:
     try:
         proc = subprocess.run([gitcmd, "describe", "--tags", "--dirty"], capture_output=True, check=True, text=True)
         version, *dirty = proc.stdout.strip().split("-")
         if dirty:
-            version += f"+{dirty[0]}.{dirty[1]}{'.dirty' if len(dirty) > 2 else ''}"
+            version += f"+{dirty[0]}.{dirty[1]}{'.dirty' if len(dirty) > 2 and type_ != 'dump' else ''}"
         break
 
     except (OSError, subprocess.CalledProcessError) as err:
         print(f"Tried {gitcmd}, returned: {err}", file=sys.stderr)
 else:  # Can't use git
-    version_file = Path(__file__).parent.parent / "euphonic" / "version.py"
     version = version_file.read_text().split("=")[1].strip('"\n ')
 
+match type_:
+    case "dist":
+        version_file.write_text(f'__version__ = "{version}"', encoding="utf-8")
+        dist_path = os.getenv("MESON_DIST_ROOT")
+        version_file = Path(dist_path) / "euphonic" / "version.py"
+        version_file.parent.mkdir(parents=True, exist_ok=True)
+        version_file.write_text(f'__version__ = "{version}"', encoding="utf-8")
+
+    case "dump":
+        version_file.write_text(f'__version__ = "{version}"', encoding="utf-8")
 
-print(version)
+    case "print":
+        print(version)
diff --git a/euphonic/version.py b/euphonic/version.py
index 361b2d001..446842908 100644
--- a/euphonic/version.py
+++ b/euphonic/version.py
@@ -1 +1 @@
-__version__ = "1.3.3a1"
+__version__ = "v1.3.1a1"
diff --git a/meson.build b/meson.build
index 366fcc7f2..572dc63c4 100644
--- a/meson.build
+++ b/meson.build
@@ -6,7 +6,9 @@ project('euphonic',
 
 build = get_option('python_only') ? disabler() : []
 
+fs = import('fs')
 py = import('python').find_installation(pure: false)
+
 py_dep = py.dependency()
 
 py_src = {
@@ -34,10 +36,13 @@ foreach folder, sources : py_src
   py.install_sources(inc, subdir: folder)
 endforeach
 
+version_script = files('./build_utils/version.py')
+meson.add_dist_script('python', version_script, '--dist')
+
+# If building from sdist not under git so will be read from last version
 version = configure_file(input: 'build_utils/version.py.in',
                          output: 'version.py',
                          configuration: {'VERSION': meson.project_version()})
-
 py.install_sources(version, 'CITATION.cff', 'LICENSE', subdir: 'euphonic')
 
 src = ['c/_euphonic.c', 'c/dyn_mat.c', 'c/util.c', 'c/py_util.c', 'c/load_libs.c']
diff --git a/tox.ini b/tox.ini
index f97b4a650..1942d99b9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,104 +1,79 @@
 [tox]
 # The python environments to run the tests in
 envlist = py310,py311,py312,py310-{base,matplotlib,phonopy_reader,brille,all},py310-minrequirements-linux
+isolated_build = true
 # Skip the execution of setup.py as we do it with the correct arg in commands_pre below
-skipsdist = True
+# skipsdist = True
 
 [testenv]
 changedir = tests_and_analysis/test
 test_command = python run_tests.py --report
 passenv = CC CC_LD LDFLAGS CPPFLAGS
-
-[testenv:{py310,py311,py312}]
 install_command =
-    python -m pip install \
+    python -m pip install -v \
         --force-reinstall \
         --upgrade \
         --upgrade-strategy eager \
         {opts} \
         {packages}
+
+[testenv:{py310,py311,py312}]
+extras =
+    matplotlib
+    phonopy_reader
+    brille
 deps =
     numpy
     -r{toxinidir}/tests_and_analysis/tox_requirements.txt
-commands_pre =
-    python -m pip install \
-    --upgrade \
-    --upgrade-strategy eager \
-    '{toxinidir}[matplotlib,phonopy_reader,brille]'
 commands =
     {[testenv]test_command} --cov
 
 # Test with no extras
 [testenv:py310-base]
-install_command = {[testenv:py310]install_command}
 deps = {[testenv:py310]deps}
-commands_pre =
-    python -m pip install \
-        --upgrade \
-        --upgrade-strategy eager \
-        '{toxinidir}'
 commands = {[testenv]test_command} --cov -m "not (phonopy_reader or matplotlib or brille)"
 
 # Test with matplotlib extra only
 [testenv:py310-matplotlib]
-install_command = {[testenv:py310]install_command}
 deps = {[testenv:py310]deps}
-commands_pre =
-    python -m pip install \
-        --upgrade \
-        --upgrade-strategy eager \
-        '{toxinidir}[matplotlib]'
+extras = matplotlib
 commands = {[testenv]test_command} --cov -m "matplotlib and not multiple_extras"
 
 # Test with phonopy_reader extra only
 [testenv:py310-phonopy_reader]
-install_command = {[testenv:py310]install_command}
 deps = {[testenv:py310]deps}
-commands_pre =
-    python -m pip install \
-        --upgrade \
-        --upgrade-strategy eager \
-        '{toxinidir}[phonopy_reader]'
+extras = phonopy_reader
 commands = {[testenv]test_command} --cov -m "phonopy_reader and not multiple_extras"
 
 # Test with brille extra only
 [testenv:py310-brille]
-install_command = {[testenv:py310]install_command}
 deps = {[testenv:py310]deps}
-commands_pre =
-    python -m pip install \
-        --upgrade \
-        --upgrade-strategy eager \
-        '{toxinidir}[brille]'
+extras = brille
 commands = {[testenv]test_command} --cov -m "brille and not multiple_extras"
 
 # Run remaining tests that require multiple extras
 [testenv:py310-all]
-install_command = {[testenv:py310]install_command}
 deps = {[testenv:py310]deps}
-commands_pre =
-    python -m pip install \
-        --upgrade \
-        --upgrade-strategy eager \
-        '{toxinidir}[phonopy_reader,matplotlib,brille]'
+extras =
+    phonopy_reader
+    matplotlib
+    brille
 commands =
     {[testenv]test_command} --cov -m multiple_extras
 
 [testenv:py310-minrequirements-linux]
 whitelist_externals = rm
+skipsdist = True
 install_command =
-    python -m pip install --force-reinstall {opts} {packages}
+    python -m pip install --upgrade pip --force-reinstall -v  {opts} {packages}
 platform =
     linux: linux
 deps =
     numpy==1.24.0
-    {[testenv:py310]deps}
+    -r{toxinidir}/tests_and_analysis/minimum_euphonic_requirements.txt
+    -r{toxinidir}/tests_and_analysis/tox_requirements.txt
 commands_pre =
-    python -m pip install --force-reinstall \
-        -r{toxinidir}/tests_and_analysis/minimum_euphonic_requirements.txt
-    python -m pip install --force-reinstall \
-        -r{toxinidir}/tests_and_analysis/tox_requirements.txt
     # Force rebuild of euphonic extension to avoid Numpy clash
     rm -rf {toxinidir}/build
-    python -m pip install '{toxinidir}[matplotlib,phonopy_reader,brille]'
+    python -m pip install -v -r '{toxinidir}/tests_and_analysis/minimum_euphonic_requirements.txt' '{toxinidir}[test,matplotlib,phonopy_reader,brille]'
 commands = {[testenv]test_command}