diff --git a/pkgs/by-name/la/laszip/package.nix b/pkgs/by-name/la/laszip/package.nix
index 63cac46b75223..9051a6d157508 100644
--- a/pkgs/by-name/la/laszip/package.nix
+++ b/pkgs/by-name/la/laszip/package.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation (finalAttrs: {
   src = fetchFromGitHub {
     owner = "LASzip";
     repo = "LASzip";
-    rev = finalAttrs.version;
+    tag = finalAttrs.version;
     hash = "sha256-v/oLU69zqDW1o1HTlay7GDh1Kbmv1rarII2Fz5HWCqg=";
   };
 
@@ -29,7 +29,7 @@ stdenv.mkDerivation (finalAttrs: {
   meta = {
     description = "Turn quickly bulky LAS files into compact LAZ files without information loss";
     homepage = "https://laszip.org";
-    changelog = "https://github.com/LASzip/LASzip/releases/tag/${finalAttrs.src.rev}";
+    changelog = "https://github.com/LASzip/LASzip/releases/tag/${finalAttrs.src.tag}";
     license = lib.licenses.lgpl2;
     maintainers = [ ];
     platforms = lib.platforms.unix;
diff --git a/pkgs/development/python-modules/laspy/default.nix b/pkgs/development/python-modules/laspy/default.nix
index 8f6d531dc69ae..b7f9fce11cef4 100644
--- a/pkgs/development/python-modules/laspy/default.nix
+++ b/pkgs/development/python-modules/laspy/default.nix
@@ -1,34 +1,40 @@
 {
   lib,
   buildPythonPackage,
-  fetchPypi,
-  numpy,
+  fetchFromGitHub,
+
+  # build-system
+  hatchling,
+
+  # depenencies
   laszip,
   lazrs,
-  setuptools,
+  numpy,
+
+  # tests
   pytestCheckHook,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "laspy";
   version = "2.7.0";
   pyproject = true;
 
-  src = fetchPypi {
-    inherit pname version;
-    hash = "sha256-9W/rVEXnXW/xLugUqrajUzkpDnUmT/J3xr9VPzAlo/U=";
+  src = fetchFromGitHub {
+    owner = "laspy";
+    repo = "laspy";
+    tag = finalAttrs.version;
+    hash = "sha256-/wvwUE+lzBgAZVtLB05Fpuq0ElajMxWqCIa1Y3sjB5k=";
   };
 
-  nativeBuildInputs = [ setuptools ];
+  build-system = [ hatchling ];
 
-  propagatedBuildInputs = [
+  dependencies = [
     numpy
     laszip
     lazrs # much faster laz reading, see https://laspy.readthedocs.io/en/latest/installation.html#laz-support
   ];
 
-  nativeCheckInputs = [ pytestCheckHook ];
-
   pythonImportsCheck = [
     "laspy"
     # `laspy` supports multiple backends and detects them dynamically.
@@ -37,13 +43,17 @@ buildPythonPackage rec {
     "lazrs"
   ];
 
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
+
   meta = {
     description = "Interface for reading/modifying/creating .LAS LIDAR files";
     mainProgram = "laspy";
     homepage = "https://github.com/laspy/laspy";
-    changelog = "https://github.com/laspy/laspy/blob/${version}/CHANGELOG.md";
+    changelog = "https://github.com/laspy/laspy/blob/${finalAttrs.version}/CHANGELOG.md";
     license = lib.licenses.bsd2;
     maintainers = with lib.maintainers; [ matthewcroughan ];
     teams = [ lib.teams.geospatial ];
   };
-}
+})
diff --git a/pkgs/development/python-modules/laszip/default.nix b/pkgs/development/python-modules/laszip/default.nix
index fa9a57c1d9db9..50bc114b7f7ec 100644
--- a/pkgs/development/python-modules/laszip/default.nix
+++ b/pkgs/development/python-modules/laszip/default.nix
@@ -1,42 +1,31 @@
 {
   lib,
-  stdenv,
   buildPythonPackage,
   fetchFromGitHub,
-  fetchpatch,
+
+  # build-system
   scikit-build-core,
   pybind11,
   cmake,
-  laszip,
   ninja,
+
+  # buildInputs
+  laszip,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "laszip-python";
-  version = "0.2.3";
+  version = "0.3.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "tmontaigu";
     repo = "laszip-python";
-    rev = version;
-    hash = "sha256-MiPzL9TDCf1xnCv7apwdfcpkFnBRi4PO/atTQxqL8cw=";
+    tag = finalAttrs.version;
+    hash = "sha256-fg9Joe5iDNT4w2j+zQuQIoxyAYpCAgLwhuqsBsJn6lU=";
   };
 
-  patches = [
-    # Removes depending on the cmake and ninja PyPI packages, since we can pass
-    # in the tools directly, and scikit-build-core can use them.
-    # https://github.com/tmontaigu/laszip-python/pull/9
-    (fetchpatch {
-      name = "remove-cmake-ninja-pypi-dependencies.patch";
-      url = "https://github.com/tmontaigu/laszip-python/commit/17e648d04945fa2d095d6d74d58c790a4fcde84a.patch";
-      hash = "sha256-k58sS1RqVzT1WPh2OVt/D4Y045ODtj6U3bUjegd44VY=";
-    })
-  ];
-
-  env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.cc.isGNU "-std=c++17";
-
-  nativeBuildInputs = [
+  build-system = [
     cmake
     ninja
     pybind11
@@ -55,8 +44,8 @@ buildPythonPackage rec {
   meta = {
     description = "Unofficial bindings between Python and LASzip made using pybind11";
     homepage = "https://github.com/tmontaigu/laszip-python";
-    changelog = "https://github.com/tmontaigu/laszip-python/blob/${src.rev}/Changelog.md";
+    changelog = "https://github.com/tmontaigu/laszip-python/blob/${finalAttrs.src.tag}/Changelog.md";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ matthewcroughan ];
   };
-}
+})
diff --git a/pkgs/development/python-modules/py3dtiles/default.nix b/pkgs/development/python-modules/py3dtiles/default.nix
index 8a8ccfa66db1c..3363e45102b07 100644
--- a/pkgs/development/python-modules/py3dtiles/default.nix
+++ b/pkgs/development/python-modules/py3dtiles/default.nix
@@ -1,6 +1,5 @@
 {
   lib,
-  fetchpatch2,
   fetchFromGitLab,
   addBinToPathHook,
 
@@ -47,21 +46,17 @@ buildPythonPackage (finalAttrs: {
     hash = "sha256-m8c+g9XXbg9OSC+NNoQkw4RKXvNFRIPWkDjAs6oH3kc=";
   };
 
-  patches = [
-    # Remove in the next version
-    # Patch to avoid using pythonRelaxDeps
-    (fetchpatch2 {
-      url = "https://gitlab.com/py3dtiles/py3dtiles/-/commit/0f60691434b9ad4afebec29b2eedfcbbe0b8420d.patch";
-      includes = [ "pyproject.toml" ];
-      hash = "sha256-TLoKeltI1xxSONX0uu56HKl2fXzAp1ufunsBPRr5Pus=";
-    })
-  ];
-
   build-system = [
     setuptools
     setuptools-scm
   ];
 
+  pythonRelaxDeps = [
+    "mapbox_earcut"
+    "numba"
+    "numpy"
+    "pyzmq"
+  ];
   dependencies = [
     lz4
     mapbox-earcut