diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ad62d9543f8d4bb1659ee7a3afe3547316edce39..48d7cd3fa690c8a7fd5dd2a8c6821b11ab52c021 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -67,6 +67,20 @@ Python 2.7 POCL:
   except:
   - tags
 
+Python 3.5 Conda Apple:
+  script:
+  - export LC_ALL=en_US.UTF-8
+  - export LANG=en_US.UTF-8
+  - export PYTEST_ADDOPTS=-k-slowtest
+  - CONDA_ENVIRONMENT=.test-conda-env-py3-macos.yml
+  - REQUIREMENTS_TXT=.test-conda-env-py3-requirements.txt
+  - curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/build-and-test-py-project-within-miniconda.sh
+  - ". ./build-and-test-py-project-within-miniconda.sh"
+  tags:
+  - apple
+  except:
+  - tags
+
 Documentation:
   script:
   - EXTRA_INSTALL="numpy mako"
diff --git a/.test-conda-env-py3-macos.yml b/.test-conda-env-py3-macos.yml
new file mode 100644
index 0000000000000000000000000000000000000000..807cd6963d5328c5cbe92494f1f255cece964c4b
--- /dev/null
+++ b/.test-conda-env-py3-macos.yml
@@ -0,0 +1,17 @@
+name: test-conda-env-py3-macos
+channels:
+- conda-forge
+- defaults
+dependencies:
+- git
+- conda-forge::numpy
+- conda-forge::sympy
+- pocl=1.0
+- islpy
+- pyopencl
+- python=3.5
+- symengine=0.3.0
+- python-symengine=0.3.0
+- pyfmmlib
+- osx-pocl-opencl
+# things not in here: loopy boxtree pymbolic meshmode sumpy
diff --git a/doc/misc.rst b/doc/misc.rst
index 874935f8cf8b078ff66ec29d30d2bbe0c32e33ce..7a3d9abaac86485e230212127871cede80711e3c 100644
--- a/doc/misc.rst
+++ b/doc/misc.rst
@@ -4,14 +4,15 @@ Installation and Usage
 Installing :mod:`pytential`
 ---------------------------
 
-This set of instructions is intended for 64-bit Linux computers.
-MacOS support is in the works.
+This set of instructions is intended for 64-bit Linux and macOS computers.
 
 #.  Make sure your system has the basics to build software.
 
     On Debian derivatives (Ubuntu and many more),
     installing ``build-essential`` should do the trick.
 
+    On macOS, run ``xcode-select --install`` to install build tools.
+
     Everywhere else, just making sure you have the ``g++`` package should be
     enough.
 
@@ -30,6 +31,8 @@ MacOS support is in the works.
 
 #.  ``conda config --add channels conda-forge``
 
+#.  (*macOS only*) ``conda install osx-pocl-opencl``
+
 #.  ``conda install git pip pocl islpy pyopencl sympy pyfmmlib pytest``
 
 #.  Type the following command::
diff --git a/setup.cfg b/setup.cfg
index 42291e82433c3c7522f8e267e41321c4d19db099..a353f3f7242d42f689d5721b8f4a104aaf3e4e6b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,3 +1,4 @@
+
 [flake8]
 ignore = E126,E127,E128,E123,E226,E241,E242,E265,E402,W503,N803,N806,N802,D102,D103
 max-line-length=85
@@ -5,3 +6,6 @@ exclude=
     pytential/symbolic/old_diffop_primitives.py,
     pytential/symbolic/pde/maxwell/generalized_debye.py,
 
+[tool:pytest]
+markers=
+    slowtest: mark a test as slow
diff --git a/test/test_maxwell.py b/test/test_maxwell.py
index 715a7669ed3b59ae7c3cea1bf1f3dff18d7bd070..87420a10c158e64ad7e447d1046b0312e93f893d 100644
--- a/test/test_maxwell.py
+++ b/test/test_maxwell.py
@@ -213,6 +213,7 @@ class EHField(object):
 
 # {{{ driver
 
+@pytest.mark.slowtest
 @pytest.mark.parametrize("case", [
     #tc_int,
     tc_ext,
diff --git a/test/test_stokes.py b/test/test_stokes.py
index 1b85080fb5343c0364d4851f28e92ca11ad715a0..3f456fc16265235dd6caf55290b332e2bb9bbeaf 100644
--- a/test/test_stokes.py
+++ b/test/test_stokes.py
@@ -26,6 +26,7 @@ THE SOFTWARE.
 import numpy as np
 import pyopencl as cl
 import pyopencl.clmath  # noqa
+import pytest
 
 from meshmode.discretization import Discretization
 from meshmode.discretization.poly_element import \
@@ -270,6 +271,7 @@ def run_exterior_stokes_2d(ctx_factory, nelements,
     return qbx.h_max, l2_err
 
 
+@pytest.mark.slowtest
 def test_exterior_stokes_2d(ctx_factory, qbx_order=3):
     from pytools.convergence import EOCRecorder
     eoc_rec = EOCRecorder()