diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c2498da8221..3a6b1f336ed 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,6 +25,42 @@ jobs:
         black -l 160 --check --diff .
 
   build:
+    strategy:
+      matrix:
+        python: ["3.12"]
+        root: ["6.32.10", "6.34.4"]
+
+    runs-on: ubuntu-latest
+    name: Compile (py${{ matrix.python }}, root${{ matrix.root }})
+
+    steps:
+    - uses: actions/checkout@master
+      with:
+        path: HiggsAnalysis/CombinedLimit # Required to match compile instructions
+    - name: Set up Conda
+      uses: conda-incubator/setup-miniconda@v3
+      with:
+        python-version: 3.12
+        miniforge-version: latest
+    - name: Install build environment
+      shell: bash -l {0}
+      run: |
+        # Install dependencies (synchronize with cms-combine-feedstock recipe.yaml)
+        mamba install -c conda-forge cmake python==${{ matrix.python }} pandas six gsl root_base==${{ matrix.root }} libboost-devel eigen vdt
+    - name: Build
+      shell: bash -l {0}
+      run: |
+        Python_SITELIB=$(python3 -c "import sysconfig;p=sysconfig.get_path('purelib');print(p)")
+        cmake -S HiggsAnalysis/CombinedLimit -B build -DCMAKE_INSTALL_PREFIX=$CONDA_PREFIX -DPython_SITELIB=$Python_SITELIB
+        cmake --build build --clean-first --parallel="${CPU_COUNT}"
+        cmake --install build  # Install to conda prefix (unsafe but ok for CI)
+    - name: Run tests
+      shell: bash -l {0}
+      run: |
+        cd HiggsAnalysis/CombinedLimit/test
+        python test_interference.py
+
+  legacy-build:
     strategy:
       matrix:
         python: ["3.8"]
@@ -33,39 +69,32 @@ jobs:
           # python 3.10 root 6.26
           - python: "3.10"
             root: "6.26.4"
-          # python 3.10 root 6.32 (not available yet)
-          #- python: "3.10"
-          #  root: "6.32" # version 6.30.07 where the conflicting classes were removed from root is not available, so compiling with 6.32.00 where this issue is resolved
 
     runs-on: ubuntu-latest
-    name: Compile (py${{ matrix.python }}, root${{ matrix.root }})
+    name: Legacy compile (py${{ matrix.python }}, root${{ matrix.root }})
 
     steps:
     - uses: actions/checkout@master
       with:
         path: HiggsAnalysis/CombinedLimit # Required to match compile instructions
     - name: Set up Conda
-      uses: conda-incubator/setup-miniconda@v2.2.0
+      uses: conda-incubator/setup-miniconda@v3
       with:
-        python-version: ${{ matrix.python }}
-        miniforge-variant: Miniforge3
-        channels: conda-forge,defaults
-        channel-priority: true
-        activate-environment: combine
+        python-version: 3.12
+        miniforge-version: latest
     - name: Install build environment
       shell: bash -l {0}
       run: |
-        mamba install -c conda-forge python==${{ matrix.python }} pip pandas root==${{ matrix.root }} gsl tbb vdt boost-cpp boost pcre eigen
-        cd HiggsAnalysis/CombinedLimit
-        bash set_conda_env_vars.sh
+        mamba install -c conda-forge cmake python==${{ matrix.python }} pip pandas root==${{ matrix.root }} gsl tbb vdt boost-cpp boost pcre eigen
     - name: Build
       shell: bash -l {0}
       run: |
-        cd HiggsAnalysis/CombinedLimit
-        make CONDA=1 -j 2
+        Python_SITELIB=$(python3 -c "import sysconfig;p=sysconfig.get_path('purelib');print(p)")
+        cmake -S HiggsAnalysis/CombinedLimit -B build -DCMAKE_INSTALL_PREFIX=$CONDA_PREFIX -DPython_SITELIB=$Python_SITELIB -DCMAKE_PREFIX_PATH=$CONDA_PREFIX
+        cmake --build build --clean-first --parallel="${CPU_COUNT}"
+        cmake --install build  # Install to conda prefix (unsafe but ok for CI)
     - name: Run tests
-      if: startsWith(matrix.python, '3.')
       shell: bash -l {0}
       run: |
         cd HiggsAnalysis/CombinedLimit/test
-        python test_interference.py
+        python test_interference.py
\ No newline at end of file
diff --git a/Makefile b/Makefile
deleted file mode 100644
index 0af8decec6c..00000000000
--- a/Makefile
+++ /dev/null
@@ -1,166 +0,0 @@
-################################################################################
-# HiggsAnalysis/Combined Limit Makefile                                        #
-#                                                                              #
-# Authors: Danilo Piparo, Giovanni Petrucciani, Mingshui Chen                  #
-# Revised: Nick Smith 2022                                                     #
-#                                                                              #
-# o Automatic compilation of new programs and classes*.                        #
-# o Now generate dictionaries by genreflex                                     #
-#                                                                              #
-# * progs should have cpp extension, classes .cc or .cxx, and headers .h       # 
-#                                                                              #
-################################################################################
-
-####  SET UP YOUR ENVIRONMENT FIRST WITH ##############################
-# source env_standalone.sh
-# OR
-# source env_lcg.sh (if `make LCG=1` is used to build)
-#######################################################################
-
-# Hardcoded paths for standalone version identical to CMSSW 14_1_X
-# These are ignored if either CONDA=1 or LCG=1 is set
-BOOST = /cvmfs/cms.cern.ch/el9_amd64_gcc12/external/boost/1.80.0-87b5de10acd2f2c8a325345ad058b814
-VDT   = /cvmfs/cms.cern.ch/el9_amd64_gcc12/cms/vdt/0.4.3-793cee1e1edef0e54b2bd5cb1f69aec9
-GSL = /cvmfs/cms.cern.ch/el9_amd64_gcc12/external/gsl/2.6-5e2ce72ea2977ff21a2344bbb52daf5c
-EIGEN = /cvmfs/cms.cern.ch/el9_amd64_gcc12/external/eigen/3bb6a48d8c171cf20b5f8e48bfb4e424fbd4f79e-3ca740c03e68b1a067f3ed0679234a78
-# Compiler and flags -----------------------------------------------------------
-CXX = $(shell root-config --cxx)
-ROOTCFLAGS = $(shell root-config --cflags)
-ROOTLIBS = $(shell root-config --libs --glibs)
-ROOTINC = $(shell root-config --incdir)
-
-# CMSSW CXXFLAGS plus -Wno-unused-local-typedefs (otherwise we get a flood of messages from BOOST) plus -Wno-unused-function
-CCFLAGS = -D STANDALONE $(ROOTCFLAGS) -g -fPIC -O2 -pthread -pipe -Werror=main -Werror=pointer-arith -Werror=overlength-strings -Wno-vla -Werror=overflow -ftree-vectorize -Wstrict-overflow -Werror=array-bounds -Werror=format-contains-nul -Werror=type-limits -fvisibility-inlines-hidden -fno-math-errno --param vect-max-version-for-alias-checks=50 -Xassembler --compress-debug-sections -msse3 -felide-constructors -fmessage-length=0 -Wall -Wno-non-template-friend -Wno-long-long -Wreturn-type -Wunused -Wparentheses -Wno-deprecated -Werror=return-type -Werror=missing-braces -Werror=unused-value -Werror=address -Werror=format -Werror=sign-compare -Werror=write-strings -Werror=delete-non-virtual-dtor -Werror=strict-aliasing -Werror=narrowing -Werror=unused-but-set-variable -Werror=reorder -Werror=unused-variable -Werror=conversion-null -Werror=return-local-addr -Wnon-virtual-dtor -Werror=switch -fdiagnostics-show-option -Wno-unused-local-typedefs -Wno-attributes -Wno-psabi -Wno-error=unused-variable -DBOOST_DISABLE_ASSERTS -DGNU_GCC -D_GNU_SOURCE -DBOOST_SPIRIT_THREADSAFE -DPHOENIX_THREADSAFE
-LIBS = $(ROOTLIBS) -lgsl -lRooFit -lRooFitCore -lRooStats -lMinuit -lMathMore -lFoam -lHistFactory -lboost_filesystem -lboost_program_options -lboost_system -lvdt
-
-ifeq ($(CONDA), 1)
-CCFLAGS += -I${CONDA_PREFIX}/include/boost -I ${CONDA_PREFIX}/include/vdt -I ${CONDA_PREFIX}/include/gsl -I ${CONDA_PREFIX}/include/eigen3 
-LIBS += -L${CONDA_PREFIX}/lib 
-else ifeq ($(LCG), 1)
-# for some reason, Eigen headers are nested in LCG
-CCFLAGS += -I ${CPLUS_INCLUDE_PATH}/eigen3
-LIBS += -L${CPLUS_INCLUDE_PATH}/../lib
-else
-CCFLAGS += -I$(BOOST)/include -I$(VDT)/include -I$(GSL)/include -I$(EIGEN)/include/eigen3
-LIBS += -L$(BOOST)/lib -L$(VDT)/lib -L$(GSL)/lib 
-endif 
-
-# Library name -----------------------------------------------------------------
-LIBNAME=HiggsAnalysisCombinedLimit
-SONAME=lib$(LIBNAME).so
-DICTNAME=$(LIBNAME)_xr
-
-# Linker and flags -------------------------------------------------------------
-LD = $(shell root-config --ld)
-ROOTLDFLAGS   = $(shell root-config --ldflags)
-ROOTLIBDIR = $(shell root-config --libdir)
-# OS x specific linkage
-DARWIN := $(shell uname|grep Darwin)
-ifdef DARWIN
-LDFLAGS       = $(ROOTLDFLAGS) -g -shared -install_name @rpath/$(SONAME) -fPIC
-EXELDFLAGS    = -Wl,-rpath,'@executable_path/../lib' -Wl,-rpath,$(ROOTLIBDIR)
-else
-LDFLAGS       = $(ROOTLDFLAGS) -shared -Wl,-soname,$(SONAME) -Wl,-E -Wl,-z,defs -fPIC
-EXELDFLAGS    = 
-endif
-
-# Directory structure ----------------------------------------------------------
-PARENT_DIR = $(shell pwd)/../../
-SRC_DIR = src
-INC_DIR = interface
-PROG_DIR = bin
-SCRIPTS_DIR = scripts
-PYTHON_DIR = python
-# outputs
-OBJ_DIR = build/obj
-LIB_DIR = build/lib
-EXE_DIR = build/bin
-
-
-# Useful shortcuts -------------------------------------------------------------
-SRCS = $(notdir $(shell ls $(SRC_DIR)/*.cc ))
-SRXS = $(notdir $(shell ls $(SRC_DIR)/*.cxx ))
-OBJS = $(SRCS:.cc=.o) 
-OBJS += $(SRXS:.cxx=.o)
-PROGS = $(notdir $(wildcard ${PROG_DIR}/*.cpp)) 
-EXES = $(PROGS:.cpp=)
-SCRIPTS = $(notdir $(wildcard ${SCRIPTS_DIR}/*.py)) 
-PYLIB_DIR = $(LIB_DIR)/python
-
-#Makefile Rules ---------------------------------------------------------------
-.PHONY: clean exe python
-
-all: exe python
-
-#---------------------------------------
-
-$(OBJ_DIR):
-	@mkdir -p $(OBJ_DIR)/a
-
-$(OBJ_DIR)/a/$(DICTNAME).cc: $(SRC_DIR)/classes_def.xml | $(OBJ_DIR)
-	genreflex $(SRC_DIR)/classes.h -s $< -o $@ --deep --fail_on_warnings --rootmap=$(OBJ_DIR)/a/$(DICTNAME).rootmap --rootmap-lib=$(SONAME) -Isrc -I$(PARENT_DIR)
-	mv $(OBJ_DIR)/a/$(DICTNAME).rootmap $(LIB_DIR)/
-	mv $(OBJ_DIR)/a/$(DICTNAME)_rdict.pcm $(LIB_DIR)/
-
-$(OBJ_DIR)/a/%.o: $(OBJ_DIR)/a/%.cc | $(OBJ_DIR)
-	$(CXX) $(CCFLAGS) -I . -I $(SRC_DIR) -I $(PARENT_DIR) -c $< -o $@
-
-#---------------------------------------
-
-$(OBJ_DIR)/%.o: $(SRC_DIR)/%.cc $(INC_DIR)/%.h | $(OBJ_DIR)
-	$(CXX) $(CCFLAGS) -I $(INC_DIR) -I $(SRC_DIR) -I $(PARENT_DIR) -c $< -o $@
-$(OBJ_DIR)/%.o: $(SRC_DIR)/%.cc $(SRC_DIR)/%.h | $(OBJ_DIR)
-	$(CXX) $(CCFLAGS) -I $(INC_DIR) -I $(SRC_DIR) -I $(PARENT_DIR) -c $< -o $@
-$(OBJ_DIR)/%.o: $(SRC_DIR)/%.cxx $(INC_DIR)/%.h | $(OBJ_DIR)
-	$(CXX) $(CCFLAGS) -I $(INC_DIR) -I $(SRC_DIR) -I $(PARENT_DIR) -c $< -o $@
-
-# this has no header
-$(OBJ_DIR)/tdrstyle.o: $(SRC_DIR)/tdrstyle.cc
-	$(CXX) $(CCFLAGS) -I $(INC_DIR) -c $< -o $@
-
-#---------------------------------------
-
-$(LIB_DIR):
-	@mkdir -p $(LIB_DIR)
-
-${LIB_DIR}/$(SONAME): $(addprefix $(OBJ_DIR)/,$(OBJS)) $(OBJ_DIR)/a/$(DICTNAME).o | $(LIB_DIR)
-	$(LD) $(LDFLAGS) $(BOOST_INC) $^ $(SOFLAGS) -o $@ $(LIBS)
-
-#---------------------------------------
-
-$(EXE_DIR):
-	@mkdir -p $(EXE_DIR)
-
-exe: $(addprefix $(EXE_DIR)/,$(EXES)) $(addprefix $(EXE_DIR)/,$(SCRIPTS))
-	@echo $^
-
-$(EXE_DIR)/%: $(PROG_DIR)/%.cpp $(LIB_DIR)/$(SONAME) | $(EXE_DIR)
-	@echo $<
-	$(CXX) $< -o $@ $(CCFLAGS) -L $(LIB_DIR) -l $(LIBNAME) -I $(INC_DIR) -I $(SRC_DIR) -I $(PARENT_DIR) $(BOOST_INC) $(LIBS) $(EXELDFLAGS)
-
-$(EXE_DIR)/%.py: $(SCRIPTS_DIR)/%.py | $(EXE_DIR)
-	cp $< $@
-# macOS System Integrity Protection unsets LD_LIBRARY_PATH for child process started by system programs
-# breaking the use of /usr/bin/env in the scripts, so we hardcode the path to python executable instead
-ifdef DARWIN
-	sed -i "" "1s@/.*@$(shell which python)@" $@
-endif
-
-#---------------------------------------
-
-.FORCE:
-
-python: .FORCE | $(LIB_DIR)
-	@mkdir -p $(PYLIB_DIR)/HiggsAnalysis/CombinedLimit
-	@touch $(PYLIB_DIR)/__init__.py
-	@touch $(PYLIB_DIR)/HiggsAnalysis/__init__.py
-	@touch $(PYLIB_DIR)/HiggsAnalysis/CombinedLimit/__init__.py
-	cp -r $(PYTHON_DIR)/* $(PYLIB_DIR)/HiggsAnalysis/CombinedLimit
-	python3 -m compileall -q $(PYLIB_DIR)
-
-#---------------------------------------
-
-clean:
-	@rm -rf $(OBJ_DIR) 
-	@rm -rf $(EXE_DIR)
-	@rm -rf $(LIB_DIR)
diff --git a/conda_env.yml b/conda_env.yml
deleted file mode 100644
index 8283bc92ee9..00000000000
--- a/conda_env.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-name: combine
-channels:
-  - conda-forge
-dependencies:
-  - python==3.8
-  - pip
-  - pandas
-  - root==6.22
-  - gsl
-  - tbb
-  - vdt
-  - boost-cpp
-  - pcre
-  - eigen
diff --git a/conda_env_exact.yml b/conda_env_exact.yml
deleted file mode 100644
index d0e8b2fa074..00000000000
--- a/conda_env_exact.yml
+++ /dev/null
@@ -1,204 +0,0 @@
-name: combine2
-channels:
-  - conda-forge
-  - defaults
-dependencies:
-  - _libgcc_mutex=0.1=conda_forge
-  - _openmp_mutex=4.5=1_llvm
-  - afterimage=1.21=ha9998ff_1003
-  - atk-1.0=2.36.0=h3371d22_4
-  - attrs=20.3.0=pyhd3deb0d_0
-  - backports=1.0=py27_1
-  - backports.functools_lru_cache=1.6.3=pyhd3eb1b0_0
-  - backports.shutil_get_terminal_size=1.0.0=py27_1
-  - backports_abc=0.5=py27_0
-  - binutils=2.34=h2122c62_9
-  - binutils_impl_linux-64=2.34=h53a641e_7
-  - binutils_linux-64=2.34=hc952b39_18
-  - blas=1.0=mkl
-  - bleach=3.3.0=pyh44b312d_0
-  - boost=1.72.0=py27h9de70de_0
-  - boost-cpp=1.72.0=h9d3c048_4
-  - bzip2=1.0.8=h7f98852_4
-  - c-ares=1.17.1=h7f98852_1
-  - c-compiler=1.1.1=h516909a_0
-  - ca-certificates=2021.1.19=h06a4308_1
-  - cairo=1.16.0=h6cf1ce9_1008
-  - certifi=2020.6.20=pyhd3eb1b0_3
-  - cffi=1.14.0=py27he30daa8_1
-  - cfitsio=3.470=hce51eda_7
-  - compilers=1.1.1=0
-  - configparser=4.0.2=py27_0
-  - contextlib2=0.6.0.post1=py_0
-  - cxx-compiler=1.1.1=hc9558a2_0
-  - davix=0.7.6=hece831a_0
-  - decorator=4.4.2=py_0
-  - defusedxml=0.7.1=pyhd3eb1b0_0
-  - eigen=3.3.9=h4bd325d_1
-  - entrypoints=0.3=py27h8c360ce_1001
-  - enum34=1.1.10=py27h8c360ce_1
-  - expat=2.3.0=h9c3ff4c_0
-  - fftw=3.3.9=h27cfd23_1
-  - font-ttf-dejavu-sans-mono=2.37=hab24e00_0
-  - font-ttf-inconsolata=2.001=hab24e00_0
-  - font-ttf-source-code-pro=2.030=hab24e00_0
-  - font-ttf-ubuntu=0.83=hab24e00_0
-  - fontconfig=2.13.1=hba837de_1004
-  - fonts-conda-ecosystem=1=0
-  - fonts-conda-forge=1=0
-  - fortran-compiler=1.1.1=he991be0_0
-  - freetype=2.10.4=h0708190_1
-  - fribidi=1.0.10=h516909a_0
-  - ftgl=2.4.0=hc56bac0_0
-  - funcsigs=1.0.2=py27_0
-  - functools32=3.2.3.2=py27_2
-  - futures=3.3.0=py27h8c360ce_1
-  - gcc_impl_linux-64=7.3.0=habb00fd_1
-  - gcc_linux-64=7.3.0=h553295d_18
-  - gdk-pixbuf=2.42.4=h04a7f16_2
-  - gettext=0.20.2=hf68c758_0
-  - gfortran_impl_linux-64=7.3.0=hdf63c60_1
-  - gfortran_linux-64=7.3.0=h553295d_18
-  - giflib=5.2.1=h516909a_2
-  - gl2ps=1.4.2=he06d7ca_0
-  - glew=2.1.0=h9c3ff4c_2
-  - graphite2=1.3.14=h23475e2_0
-  - graphviz=2.47.0=he056042_1
-  - gsl=2.6=he838d99_2
-  - gsoap_abi=2.8.109=ha770c72_0
-  - gtk2=2.24.33=hab0c2f8_0
-  - gts=0.7.6=h64030ff_2
-  - gxx_impl_linux-64=7.3.0=hdf63c60_1
-  - gxx_linux-64=7.3.0=h553295d_18
-  - harfbuzz=2.8.0=h83ec7ef_1
-  - icu=68.1=h58526e2_0
-  - importlib_metadata=1.5.0=py27_0
-  - ipaddress=1.0.23=py_0
-  - ipykernel=4.10.0=py27_1
-  - ipyparallel=6.2.4=py27_0
-  - ipython=5.8.0=py27_1
-  - ipython_genutils=0.2.0=py27_0
-  - jinja2=2.11.3=pyh44b312d_0
-  - jpeg=9d=h516909a_0
-  - jsonschema=3.2.0=py27h8c360ce_1
-  - jupyter_client=5.3.4=py27_1
-  - jupyter_core=4.6.3=py27h8c360ce_1
-  - krb5=1.17.2=h926e7f8_0
-  - ld_impl_linux-64=2.34=h53a641e_7
-  - libblas=3.9.0=8_mkl
-  - libcblas=3.9.0=8_mkl
-  - libcurl=7.76.0=hc4aaa36_0
-  - libcxx=10.0.1=hc9558a2_0
-  - libcxxabi=10.0.1=0
-  - libedit=3.1.20210216=h27cfd23_1
-  - libev=4.33=h516909a_1
-  - libffi=3.3=h58526e2_2
-  - libgcc-ng=9.3.0=h2828fa1_18
-  - libgd=2.3.2=h78a0170_0
-  - libgfortran-ng=7.5.0=h14aa051_18
-  - libgfortran4=7.5.0=h14aa051_18
-  - libglib=2.68.0=h3e27bee_2
-  - libglu=9.0.0=he1b5a44_1001
-  - libiconv=1.16=h516909a_0
-  - libllvm8=8.0.1=hc9558a2_0
-  - libnghttp2=1.43.0=h812cca2_0
-  - libpng=1.6.37=hed695b0_2
-  - librsvg=2.50.3=hfa39831_1
-  - libsodium=1.0.17=h516909a_0
-  - libssh2=1.9.0=ha56f1ee_6
-  - libstdcxx-ng=9.3.0=h6de172a_18
-  - libtiff=4.2.0=hdc55705_0
-  - libtool=2.4.6=h58526e2_1007
-  - libuuid=2.32.1=h14c3975_1000
-  - libwebp=1.2.0=h3452ae3_0
-  - libwebp-base=1.2.0=h7f98852_2
-  - libxcb=1.14=h7b6447c_0
-  - libxml2=2.9.10=h72842e0_3
-  - llvm-openmp=11.1.0=h4bd325d_0
-  - llvmlite=0.31.0=py27h5ee40b5_1
-  - lz4-c=1.9.2=he1b5a44_3
-  - markupsafe=1.1.1=py27hdf8410d_1
-  - metakernel=0.27.5=pyhd3deb0d_0
-  - mistune=0.8.4=py27hdf8410d_1001
-  - mkl=2020.4=h726a3e6_304
-  - mkl-service=2.3.0=py27he904b0f_0
-  - mkl_fft=1.0.15=py27ha843d7b_0
-  - mkl_random=1.1.0=py27hd6b4f25_0
-  - more-itertools=5.0.0=py_0
-  - nbconvert=5.6.1=py27_0
-  - nbformat=4.4.0=py27_0
-  - ncurses=6.2=h58526e2_4
-  - notebook=5.7.10=py27_0
-  - numba=0.47.0=py27hb3f55d8_0
-  - numpy=1.16.6=py27hbc911f0_0
-  - numpy-base=1.16.6=py27hde5b4d6_0
-  - openssl=1.1.1k=h7f98852_0
-  - packaging=20.9=pyh44b312d_0
-  - pandoc=2.12=h7f98852_0
-  - pandocfilters=1.4.2=py27_0
-  - pango=1.42.4=h80147aa_5
-  - pathlib2=2.3.5=py27h8c360ce_1
-  - pcre=8.44=he1b5a44_0
-  - pexpect=4.8.0=py27h8c360ce_1
-  - pickleshare=0.7.5=py27h8c360ce_1001
-  - pip=20.1.1=pyh9f0ad1d_0
-  - pixman=0.40.0=h36c2ea0_0
-  - portalocker=1.5.2=py27h8c360ce_1
-  - prometheus_client=0.9.0=pyhd3deb0d_0
-  - prompt_toolkit=1.0.15=py27_0
-  - ptyprocess=0.7.0=pyhd3deb0d_0
-  - pycparser=2.20=pyh9f0ad1d_2
-  - pygments=2.5.2=py_0
-  - pyparsing=2.4.7=pyh9f0ad1d_0
-  - pyrsistent=0.15.7=py27hdf8410d_1
-  - pythia8=8.244=py27haf22ab1_1
-  - python=2.7.18=h15b4118_1
-  - python-dateutil=2.8.1=py_0
-  - python_abi=2.7=1_cp27mu
-  - pyzmq=19.0.0=py27h76efe43_1
-  - readline=8.1=h27cfd23_0
-  - root=6.22.0=py27hf09d227_2
-  - root-binaries=6.22.0=py27hf09d227_2
-  - root-dependencies=6.22.0=py27hf09d227_2
-  - root_base=6.22.0=py27h07c60d7_2
-  - scandir=1.10.0=py27hdf8410d_1
-  - send2trash=1.5.0=py_0
-  - setuptools=44.0.0=py27_0
-  - simplegeneric=0.8.1=py27_0
-  - singledispatch=3.6.1=pyh44b312d_0
-  - six=1.15.0=pyh9f0ad1d_0
-  - sqlite=3.35.3=h74cdb3f_0
-  - tbb=2020.3=hfd86e86_0
-  - tbb-devel=2020.3=hfd86e86_0
-  - terminado=0.8.3=py27h8c360ce_1
-  - testpath=0.4.4=py_0
-  - tk=8.6.10=hed695b0_1
-  - tornado=5.1.1=py27h14c3975_1000
-  - traitlets=4.3.3=py27h8c360ce_1
-  - vdt=0.4.3=hf484d3e_0
-  - wcwidth=0.2.5=pyh9f0ad1d_2
-  - webencodings=0.5.1=py_1
-  - wheel=0.36.2=pyhd3deb0d_0
-  - xorg-fixesproto=5.0=h14c3975_1002
-  - xorg-kbproto=1.0.7=h14c3975_1002
-  - xorg-libice=1.0.10=h516909a_0
-  - xorg-libsm=1.2.3=hd9c2040_1000
-  - xorg-libx11=1.6.12=h516909a_0
-  - xorg-libxau=1.0.9=h14c3975_0
-  - xorg-libxcursor=1.2.0=h516909a_0
-  - xorg-libxext=1.3.4=h516909a_0
-  - xorg-libxfixes=5.0.3=h516909a_1004
-  - xorg-libxft=2.3.3=h71203ad_0
-  - xorg-libxpm=3.5.13=h516909a_0
-  - xorg-libxrender=0.9.10=h516909a_1002
-  - xorg-libxt=1.1.5=h516909a_1003
-  - xorg-renderproto=0.11.1=h14c3975_1002
-  - xorg-xextproto=7.3.0=h14c3975_1002
-  - xorg-xproto=7.0.31=h14c3975_1007
-  - xrootd=4.12.3=py27h25260f6_0
-  - xxhash=0.7.4=h516909a_0
-  - xz=5.2.5=h516909a_1
-  - zeromq=4.3.2=he1b5a44_2
-  - zipp=1.0.0=py_0
-  - zlib=1.2.11=h516909a_1010
-  - zstd=1.4.8=hdf46e1d_0
diff --git a/env_standalone.sh b/env_standalone.sh
deleted file mode 100644
index 6a36fe6fb63..00000000000
--- a/env_standalone.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-# equivalent to CMSSW 14_1_X
-. /cvmfs/cms.cern.ch/el9_amd64_gcc12/external/gcc/12.3.1-40d504be6370b5a30e3947a6e575ca28/etc/profile.d/init.sh
-. /cvmfs/cms.cern.ch/el9_amd64_gcc12/lcg/root/6.30.07-8b1a11e1ef0e074fdfd44e162b27e71c/etc/profile.d/init.sh
-# this also provides py3-six
-. /cvmfs/cms.cern.ch/el9_amd64_gcc12/external/py3-pandas/2.0.1-7e0980e2f417a1fc2106b953723ea098/etc/profile.d/init.sh
-. /cvmfs/cms.cern.ch/el9_amd64_gcc12/external/gsl/2.6-5e2ce72ea2977ff21a2344bbb52daf5c/etc/profile.d/init.sh
-. /cvmfs/cms.cern.ch/el9_amd64_gcc12/external/tbb/v2021.9.0-7e31cf78e4a7495ff0337c859d1dc314/etc/profile.d/init.sh
-. /cvmfs/cms.cern.ch/el9_amd64_gcc12/cms/vdt/0.4.3-793cee1e1edef0e54b2bd5cb1f69aec9/etc/profile.d/init.sh
-. /cvmfs/cms.cern.ch/el9_amd64_gcc12/external/boost/1.80.0-87b5de10acd2f2c8a325345ad058b814/etc/profile.d/init.sh
-. /cvmfs/cms.cern.ch/el9_amd64_gcc12/external/pcre/8.43-e34796d17981e9b6d174328c69446455/etc/profile.d/init.sh
-. /cvmfs/cms.cern.ch/el9_amd64_gcc12/external/eigen/3bb6a48d8c171cf20b5f8e48bfb4e424fbd4f79e-3ca740c03e68b1a067f3ed0679234a78/etc/profile.d/init.sh
- export PATH=${PATH}:${PWD}/build/bin
- export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${PWD}/build/lib
- export PYTHONPATH=${PYTHONPATH}:${PWD}/build/lib/python
diff --git a/set_conda_env_vars.sh b/set_conda_env_vars.sh
deleted file mode 100644
index 35d27000198..00000000000
--- a/set_conda_env_vars.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-conda env config vars set PATH=${PATH}:${PWD}/build/bin
-conda env config vars set LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${PWD}/build/lib
-conda env config vars set PYTHONPATH=${PYTHONPATH}:${PWD}/build/lib/python