diff --git a/.circleci/NiceLinuxDockerfile b/.circleci/NiceLinuxDockerfile
new file mode 100644
index 0000000..8ef5518
--- /dev/null
+++ b/.circleci/NiceLinuxDockerfile
@@ -0,0 +1,8 @@
+FROM debian:testing
+RUN mkdir /work
+WORKDIR /work
+RUN \
+  apt update && \
+  apt install -y --no-install-recommends clang ssh git tar zip ca-certificates && \
+  apt install -y cmake python-pip && \
+  rm -rf /var/lib/apt/lists/*
diff --git a/.circleci/__init__.cpp b/.circleci/__init__.cpp
new file mode 100644
index 0000000..fa929b8
--- /dev/null
+++ b/.circleci/__init__.cpp
@@ -0,0 +1,78 @@
+#define NOCROSSCONSTRUCTORS
+
+
+#include <cstdint>
+#include <string>
+#include <tuple>
+#include <stdexcept>
+
+#define assert(x) if(!x) {throw std::runtime_error("assertion failed");}
+
+#include <sdsl/vectors.hpp>
+
+#include <pybind11/pybind11.h>
+
+#include "docstrings.hpp"
+#include "operations/creation.hpp"
+#include "types/bitvector.hpp"
+#include "types/encodedvector.hpp"
+#include "types/intvector.hpp"
+#include "types/suffixarray.hpp"
+#include "types/wavelet.hpp"
+
+namespace py = pybind11;
+
+
+PYBIND11_MODULE(pysdsl, m)
+{
+    m.doc() = "sdsl-lite bindings for python";
+
+    auto iv_classes = add_int_vectors(m);
+
+    py::class_<sdsl::int_vector<1>>& bit_vector_cls = std::get<1>(iv_classes);
+
+    auto bit_vector_classes = std::make_tuple(bit_vector_cls);
+
+    // auto tmp = add_bitvectors(m, bit_vector_cls);
+    // auto compressed_bit_vector_classes = std::get<0>(tmp);
+    // auto cbv_propagate = std::get<1>(tmp);
+
+    // auto enc_classes = add_encoded_vectors(m);
+
+    // auto wavelet_classes = add_wavelet(m, cbv_propagate);
+
+    // auto csa_classes = add_csa(m);
+
+    for_each_in_tuple(iv_classes, make_inits_many_functor(iv_classes));
+    // for_each_in_tuple(iv_classes, make_inits_many_functor(enc_classes));
+    // for_each_in_tuple(iv_classes,
+    //                   make_inits_many_functor(compressed_bit_vector_classes));
+    // for_each_in_tuple(iv_classes, make_inits_many_functor(wavelet_classes));
+
+    // for_each_in_tuple(enc_classes, make_inits_many_functor(iv_classes));
+// #ifndef NOCROSSCONSTRUCTORS
+    // for_each_in_tuple(enc_classes, make_inits_many_functor(enc_classes));
+    //for_each_in_tuple(enc_classes, make_inits_many_functor(wavelet_classes));
+// #endif
+
+    // for_each_in_tuple(compressed_bit_vector_classes,
+    //                   make_inits_many_functor(bit_vector_classes));
+// #ifndef NOCROSSCONSTRUCTORS
+    // for_each_in_tuple(compressed_bit_vector_classes, make_inits_many_functor(compressed_bit_vector_classes));
+// #endif
+
+    // for_each_in_tuple(wavelet_classes, make_inits_many_functor(iv_classes));
+// #ifndef NOCROSSCONSTRUCTORS
+    // for_each_in_tuple(wavelet_classes, make_inits_many_functor(enc_classes));
+    // for_each_in_tuple(wavelet_classes,
+                      // make_inits_many_functor(wavelet_classes));
+// #endif
+
+    for_each_in_tuple(iv_classes, make_pysequence_init_functor());
+    // for_each_in_tuple(enc_classes, make_pysequence_init_functor());
+    //for_each_in_tuple(compressed_bit_vector_classes,
+    //                  make_pysequence_init_functor());
+
+    // for_each_in_tuple(wavelet_classes, make_pysequence_init_functor());
+    // for_each_in_tuple(csa_classes, make_pysequence_init_functor());
+}
diff --git a/.circleci/config.yml b/.circleci/config.yml
new file mode 100644
index 0000000..ae5319b
--- /dev/null
+++ b/.circleci/config.yml
@@ -0,0 +1,53 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: ivigns/nice-linux:debian-0.0.3
+    resource_class: xlarge
+    working_directory: /work
+    steps:
+      - checkout
+      - run:
+          name: build
+          command: |
+            git submodule sync
+            git submodule update --init --recursive
+            cd /work/libdivsufsort
+            git pull origin master
+            cd /work/sdsl-lite
+            git pull origin master
+            cd /work/sdsl-lite/external/libdivsufsort
+            git pull origin master
+            cd /work/pybind11
+            git pull origin master
+            cd /tmp
+            mkdir sdsl-lite-build
+            mkdir libdivsufsort-build
+            export CC=clang
+            export CXX=clang++
+            export CFLAGS="-O3 -static -lc -fPIC -static-libgcc -pipe -fcolor-diagnostics -lpthread -Wl,-Bstatic"
+            cd /tmp/libdivsufsort-build
+            cmake -D BUILD_SHARED_LIBS=OFF /work/libdivsufsort
+            make install
+            export CXXFLAGS="-O3 -pipe -fcolor-diagnostics -static-libgcc -static-libstdc++ -fPIC -lpthread  -Wl,-Bstatic -Wl,-Bdynamic"
+            cd /tmp/sdsl-lite-build
+            cmake /work/sdsl-lite
+            make install
+            export CXXFLAGS="-O3 -pipe -stdlib=libc++ -fcolor-diagnostics -fPIC -DNOCROSSCONSTRUCTORS"
+            export CFLAGS="-O3 -pipe -fcolor-diagnostics -fPIC"
+            cd /work/pybind11
+            pip install --no-binary ':all:' --no-cache-dir . --verbose
+            cd /work
+            pip wheel --no-binary ':all:' --no-cache-dir -w dist . --verbose
+      - run:
+          name: show
+          command: cd /work && ls -aR
+      - run:
+          name: test wheel
+          command: |
+            apt-get update -qq
+            apt-get install -qqy python python-pip
+            pip install $(ls -d /work/dist/*)
+            mkdir /tmp/test
+            cd /tmp/test
+            python -c 'import pysdsl'