diff --git a/install/_utils.sh b/install/_utils.sh
index fe572e8..35bca94 100644
--- a/install/_utils.sh
+++ b/install/_utils.sh
@@ -20,6 +20,59 @@ try_install() {
     }
 }
 
+prepare_cxx_runtime_libs() {
+    local runtime_dir="$CONDA_PREFIX/lib/embodiedgen-runtime"
+    local runtime_lib
+
+    mkdir -p "$runtime_dir"
+    for runtime_lib in libstdc++.so.6 libgcc_s.so.1; do
+        if [[ ! -e "$CONDA_PREFIX/lib/$runtime_lib" ]]; then
+            log_error "Missing required C++ runtime library: $CONDA_PREFIX/lib/$runtime_lib"
+            return 1
+        fi
+        ln -sfn "../$runtime_lib" "$runtime_dir/$runtime_lib"
+    done
+}
+
+write_cuda_deactivation_hook() {
+    local cuda_variant="$1"
+    local deactivate_dir="$CONDA_PREFIX/etc/conda/deactivate.d"
+    local deactivate_hook="$deactivate_dir/cuda${cuda_variant#cu}.sh"
+
+    mkdir -p "$deactivate_dir"
+    rm -f "$deactivate_dir/cuda126.sh" "$deactivate_dir/cuda128.sh"
+    cat > "$deactivate_hook" <<'HOOK'
+_embodiedgen_remove_path() {
+    local variable_name="$1"
+    local path_to_remove="$2"
+    local current_value
+
+    if [[ -v "$variable_name" ]]; then
+        current_value=":${!variable_name}:"
+    else
+        current_value=":"
+    fi
+    current_value="${current_value//:$path_to_remove:/:}"
+    current_value="${current_value#:}"
+    current_value="${current_value%:}"
+    if [[ -n "$current_value" ]]; then
+        export "$variable_name=$current_value"
+    else
+        unset "$variable_name"
+    fi
+}
+
+_embodiedgen_remove_path LD_LIBRARY_PATH "$CONDA_PREFIX/lib/embodiedgen-runtime"
+_embodiedgen_remove_path LD_LIBRARY_PATH "$CONDA_PREFIX/targets/x86_64-linux/lib"
+_embodiedgen_remove_path LIBRARY_PATH "$CONDA_PREFIX/targets/x86_64-linux/lib"
+_embodiedgen_remove_path CPATH "$CONDA_PREFIX/targets/x86_64-linux/include"
+unset -f _embodiedgen_remove_path
+unset EMBODIEDGEN_CUDA_VARIANT EMBODIEDGEN_RUNTIME_LIB
+unset CUDA_HOME CUDA_PATH CUDA_TARGET_LIB
+unset TORCH_CUDA_ARCH_LIST TCNN_CUDA_ARCHITECTURES
+HOOK
+}
+
 detect_cuda_variant() {
     local cuda_variant="cu126"
 
diff --git a/install/install_cu126.sh b/install/install_cu126.sh
index d7d5a7a..1295fca 100755
--- a/install/install_cu126.sh
+++ b/install/install_cu126.sh
@@ -25,16 +25,24 @@ fi
 
 log_info "Installing CUDA 12.6 toolkit into conda environment: $CONDA_PREFIX"
 log_info "Using conda executable: $CONDA_CMD"
+CONDA_CHANNEL_ARGS=()
+if [[ -n "${EMBODIEDGEN_CUDA_CHANNEL:-}" ]]; then
+    CONDA_CHANNEL_ARGS=(
+        --override-channels
+        -c "$EMBODIEDGEN_CUDA_CHANNEL"
+    )
+    log_info "Using CUDA conda channel: $EMBODIEDGEN_CUDA_CHANNEL"
+fi
+
 "$CONDA_CMD" install \
     -p "$CONDA_PREFIX" \
-    --override-channels \
-    -c nvidia \
-    -c conda-forge \
+    "${CONDA_CHANNEL_ARGS[@]}" \
     cuda-toolkit=12.6 \
     cuda-nvcc=12.6 \
     -y
 
 log_info "Writing CUDA 12.6 activation hook into the conda environment..."
+prepare_cxx_runtime_libs
 mkdir -p "$CONDA_PREFIX/etc/conda/activate.d"
 rm -f "$CONDA_PREFIX/etc/conda/activate.d/cuda128.sh"
 cat > "$CONDA_PREFIX/etc/conda/activate.d/cuda126.sh" <<'HOOK'
@@ -42,22 +50,18 @@ export EMBODIEDGEN_CUDA_VARIANT="cu126"
 export CUDA_HOME="$CONDA_PREFIX"
 export CUDA_PATH="$CONDA_PREFIX"
 export CUDA_TARGET_LIB="$CONDA_PREFIX/targets/x86_64-linux/lib"
-_cuda_conda_bin="$CONDA_PREFIX/bin"
+export EMBODIEDGEN_RUNTIME_LIB="$CONDA_PREFIX/lib/embodiedgen-runtime"
 _cuda_conda_lib="$CONDA_PREFIX/lib"
 _cuda_conda_lib64="$CONDA_PREFIX/lib64"
 _cuda_target_include="$CONDA_PREFIX/targets/x86_64-linux/include"
-_cuda_path=":${PATH:-}:"
-_cuda_path="${_cuda_path//:$_cuda_conda_bin:/:}"
-_cuda_path="${_cuda_path#:}"
-_cuda_path="${_cuda_path%:}"
-export PATH="$_cuda_conda_bin${_cuda_path:+:$_cuda_path}"
 _cuda_ld_path=":${LD_LIBRARY_PATH:-}:"
+_cuda_ld_path="${_cuda_ld_path//:$EMBODIEDGEN_RUNTIME_LIB:/:}"
 _cuda_ld_path="${_cuda_ld_path//:$CUDA_TARGET_LIB:/:}"
 _cuda_ld_path="${_cuda_ld_path//:$_cuda_conda_lib:/:}"
 _cuda_ld_path="${_cuda_ld_path//:$_cuda_conda_lib64:/:}"
 _cuda_ld_path="${_cuda_ld_path#:}"
 _cuda_ld_path="${_cuda_ld_path%:}"
-export LD_LIBRARY_PATH="$CUDA_TARGET_LIB${_cuda_ld_path:+:$_cuda_ld_path}"
+export LD_LIBRARY_PATH="$EMBODIEDGEN_RUNTIME_LIB:$CUDA_TARGET_LIB${_cuda_ld_path:+:$_cuda_ld_path}"
 _cuda_library_path=":${LIBRARY_PATH:-}:"
 _cuda_library_path="${_cuda_library_path//:$CUDA_TARGET_LIB:/:}"
 _cuda_library_path="${_cuda_library_path#:}"
@@ -68,10 +72,11 @@ _cuda_cpath="${_cuda_cpath//:$_cuda_target_include:/:}"
 _cuda_cpath="${_cuda_cpath#:}"
 _cuda_cpath="${_cuda_cpath%:}"
 export CPATH="$_cuda_target_include${_cuda_cpath:+:$_cuda_cpath}"
-unset _cuda_conda_bin _cuda_conda_lib _cuda_conda_lib64 _cuda_target_include
-unset _cuda_path _cuda_ld_path _cuda_library_path _cuda_cpath
+unset _cuda_conda_lib _cuda_conda_lib64 _cuda_target_include
+unset _cuda_ld_path _cuda_library_path _cuda_cpath
 export TORCH_CUDA_ARCH_LIST="${EMBODIEDGEN_TORCH_CUDA_ARCH_LIST:-8.9}"
 HOOK
+write_cuda_deactivation_hook "cu126"
 
 log_info "Verifying CUDA 12.6 compiler from the active conda environment..."
 source "$CONDA_PREFIX/etc/conda/activate.d/cuda126.sh"
diff --git a/install/install_cu128.sh b/install/install_cu128.sh
index 0c14be0..68bc221 100755
--- a/install/install_cu128.sh
+++ b/install/install_cu128.sh
@@ -42,6 +42,7 @@ fi
     -y
 
 log_info "Writing CUDA 12.8 activation hook into the conda environment..."
+prepare_cxx_runtime_libs
 mkdir -p "$CONDA_PREFIX/etc/conda/activate.d"
 rm -f "$CONDA_PREFIX/etc/conda/activate.d/cuda126.sh"
 cat > "$CONDA_PREFIX/etc/conda/activate.d/cuda128.sh" <<'HOOK'
@@ -49,22 +50,18 @@ export EMBODIEDGEN_CUDA_VARIANT="cu128"
 export CUDA_HOME="$CONDA_PREFIX"
 export CUDA_PATH="$CONDA_PREFIX"
 export CUDA_TARGET_LIB="$CONDA_PREFIX/targets/x86_64-linux/lib"
-_cuda_conda_bin="$CONDA_PREFIX/bin"
+export EMBODIEDGEN_RUNTIME_LIB="$CONDA_PREFIX/lib/embodiedgen-runtime"
 _cuda_conda_lib="$CONDA_PREFIX/lib"
 _cuda_conda_lib64="$CONDA_PREFIX/lib64"
 _cuda_target_include="$CONDA_PREFIX/targets/x86_64-linux/include"
-_cuda_path=":${PATH:-}:"
-_cuda_path="${_cuda_path//:$_cuda_conda_bin:/:}"
-_cuda_path="${_cuda_path#:}"
-_cuda_path="${_cuda_path%:}"
-export PATH="$_cuda_conda_bin${_cuda_path:+:$_cuda_path}"
 _cuda_ld_path=":${LD_LIBRARY_PATH:-}:"
+_cuda_ld_path="${_cuda_ld_path//:$EMBODIEDGEN_RUNTIME_LIB:/:}"
 _cuda_ld_path="${_cuda_ld_path//:$CUDA_TARGET_LIB:/:}"
 _cuda_ld_path="${_cuda_ld_path//:$_cuda_conda_lib:/:}"
 _cuda_ld_path="${_cuda_ld_path//:$_cuda_conda_lib64:/:}"
 _cuda_ld_path="${_cuda_ld_path#:}"
 _cuda_ld_path="${_cuda_ld_path%:}"
-export LD_LIBRARY_PATH="$CUDA_TARGET_LIB${_cuda_ld_path:+:$_cuda_ld_path}"
+export LD_LIBRARY_PATH="$EMBODIEDGEN_RUNTIME_LIB:$CUDA_TARGET_LIB${_cuda_ld_path:+:$_cuda_ld_path}"
 _cuda_library_path=":${LIBRARY_PATH:-}:"
 _cuda_library_path="${_cuda_library_path//:$CUDA_TARGET_LIB:/:}"
 _cuda_library_path="${_cuda_library_path#:}"
@@ -75,11 +72,12 @@ _cuda_cpath="${_cuda_cpath//:$_cuda_target_include:/:}"
 _cuda_cpath="${_cuda_cpath#:}"
 _cuda_cpath="${_cuda_cpath%:}"
 export CPATH="$_cuda_target_include${_cuda_cpath:+:$_cuda_cpath}"
-unset _cuda_conda_bin _cuda_conda_lib _cuda_conda_lib64 _cuda_target_include
-unset _cuda_path _cuda_ld_path _cuda_library_path _cuda_cpath
+unset _cuda_conda_lib _cuda_conda_lib64 _cuda_target_include
+unset _cuda_ld_path _cuda_library_path _cuda_cpath
 export TORCH_CUDA_ARCH_LIST="${EMBODIEDGEN_TORCH_CUDA_ARCH_LIST:-12.0}"
 export TCNN_CUDA_ARCHITECTURES="${EMBODIEDGEN_TCNN_CUDA_ARCHITECTURES:-120}"
 HOOK
+write_cuda_deactivation_hook "cu128"
 
 log_info "Verifying CUDA 12.8 compiler from the active conda environment..."
 source "$CONDA_PREFIX/etc/conda/activate.d/cuda128.sh"