diff --git a/env/merlin/spack.yaml b/env/merlin/spack.yaml
index 60ce5e9..8a838ed 100644
--- a/env/merlin/spack.yaml
+++ b/env/merlin/spack.yaml
@@ -152,7 +152,260 @@ spack:
   include:
     - sysconfigs/compilers.yaml
     - sysconfigs/packages.yaml
-    - sysconfigs/modules.yaml
+#>>> modules.yaml
+  modules:
+    Compilers:
+      use_view: Compilers
+      arch_folder: false
+      enable:
+      - tcl
+      roots:
+        tcl: /afs/psi.ch/sys/spack-rhel7/Compilers
+      tcl:
+        blacklist_implicits: true
+        include: *compiler_pckg
+        all:
+          autoload: direct
+          conflict:
+            - '{name}'
+          environment:
+            set:
+              ${PACKAGE}_INCLUDE_DIR: '{prefix}/include'
+              ${PACKAGE}_LIBRARY_DIR: '{prefix}/lib'
+              ${PACKAGE}_VERSION: '{version}'
+        projections: &unified_modules_projections
+          all: modulefiles/{compiler.name}/{compiler.version}/{name}/{version}
+          ^mpi: 'modulefiles/{compiler.name}/{compiler.version}/{name}/{version}/{^mpi.name}/{^mpi.version}'
+          ~mpi: 'modulefiles/{compiler.name}/{compiler.version}/{name}_serial/{version}'
+    Cuda:
+      use_view: Cuda
+      arch_folder: false
+      enable:
+      - tcl
+      roots:
+        tcl: /afs/psi.ch/sys/spack-rhel7/cuda
+      tcl:
+        blacklist_implicits: true
+        include: *cuda_pckg
+        all:
+          autoload: direct
+          conflict:
+            - '{name}'
+          environment:
+            set:
+              ${PACKAGE}_INCLUDE_DIR: '{prefix}/include'
+              ${PACKAGE}_LIBRARY_DIR: '{prefix}/lib'
+              ${PACKAGE}_VERSION: '{version}'
+        projections: *unified_modules_projections
+    EM:
+      use_view: EM
+      arch_folder: false
+      enable:
+      - tcl
+      roots:
+        tcl: /afs/psi.ch/sys/spack-rhel7/EM
+      tcl:
+        blacklist_implicits: true
+        include: *EM_pckg
+        all:
+          autoload: direct
+          conflict:
+            - '{name}'
+          environment:
+            set:
+              ${PACKAGE}_INCLUDE_DIR: '{prefix}/include'
+              ${PACKAGE}_LIBRARY_DIR: '{prefix}/lib'
+              ${PACKAGE}_VERSION: '{version}'
+        projections: *unified_modules_projections
+    HDF5:
+      use_view: HDF5
+      arch_folder: false
+      enable:
+      - tcl
+      roots:
+        tcl: /afs/psi.ch/sys/spack-rhel7/HDF5
+      tcl:
+        blacklist_implicits: true
+        include: *HDF5_pckg
+        all:
+          autoload: direct
+          conflict:
+            - '{name}'
+            - 'HDF5_serial'
+          environment:
+            set:
+              ${PACKAGE}_INCLUDE_DIR: '{prefix}/include'
+              ${PACKAGE}_LIBRARY_DIR: '{prefix}/lib'
+              ${PACKAGE}_VERSION: '{version}'
+        projections: *unified_modules_projections
+    HDF5_serial:
+      use_view: HDF5_serial
+      arch_folder: false
+      enable:
+      - tcl
+      roots:
+        tcl: /afs/psi.ch/sys/spack-rhel7/HDF5_serial
+      tcl:
+        blacklist_implicits: true
+        include: *HDF5_serial_pckg
+        all:
+          autoload: direct
+          conflict:
+            - '{name}'
+            - 'HDF5_serial'
+          environment:
+            set:
+              ${PACKAGE}_INCLUDE_DIR: '{prefix}/include'
+              ${PACKAGE}_LIBRARY_DIR: '{prefix}/lib'
+              ${PACKAGE}_VERSION: '{version}'
+        projections: *unified_modules_projections
+    Librairies:
+      use_view: Librairies
+      arch_folder: false
+      enable:
+      - tcl
+      roots:
+        tcl: /afs/psi.ch/sys/spack-rhel7/Librairies
+      tcl:
+        blacklist_implicits: true
+        include: *librairies_pckg
+        all:
+          autoload: direct
+          conflict:
+            - '{name}'
+          environment:
+            set:
+              ${PACKAGE}_INCLUDE_DIR: '{prefix}/include'
+              ${PACKAGE}_LIBRARY_DIR: '{prefix}/lib'
+              ${PACKAGE}_VERSION: '{version}'
+        projections: *unified_modules_projections
+    MPI:
+      use_view: MPI
+      arch_folder: false
+      enable:
+      - tcl
+      roots:
+        tcl: /afs/psi.ch/sys/spack-rhel7/MPI
+      tcl:
+        blacklist_implicits: true
+        include: *MPI_pckg
+        all:
+          autoload: direct
+          conflict:
+            - '{name}'
+          environment:
+            set:
+              ${PACKAGE}_INCLUDE_DIR: '{prefix}/include'
+              ${PACKAGE}_LIBRARY_DIR: '{prefix}/lib'
+              ${PACKAGE}_VERSION: '{version}'
+        projections: *unified_modules_projections
+    MX:
+      use_view: MX
+      arch_folder: false
+      enable:
+      - tcl
+      roots:
+        tcl: /afs/psi.ch/sys/spack-rhel7/MX
+      tcl:
+        blacklist_implicits: true
+        include: *MX_pckg
+        all:
+          autoload: direct
+          conflict:
+            - '{name}'
+          environment:
+            set:
+              ${PACKAGE}_INCLUDE_DIR: '{prefix}/include'
+              ${PACKAGE}_LIBRARY_DIR: '{prefix}/lib'
+              ${PACKAGE}_VERSION: '{version}'
+        projections: *unified_modules_projections
+    Programming:
+      use_view: Programming
+      arch_folder: false
+      enable:
+      - tcl
+      roots:
+        tcl: /afs/psi.ch/sys/spack-rhel7/Programming
+      tcl:
+        blacklist_implicits: true
+        include: *programming_pckg
+        all:
+          autoload: direct
+          conflict:
+            - '{name}'
+          environment:
+            set:
+              ${PACKAGE}_INCLUDE_DIR: '{prefix}/include'
+              ${PACKAGE}_LIBRARY_DIR: '{prefix}/lib'
+              ${PACKAGE}_VERSION: '{version}'
+        projections: *unified_modules_projections
+    System:
+      use_view: System
+      arch_folder: false
+      enable:
+      - tcl
+      roots:
+        tcl: /afs/psi.ch/sys/spack-rhel7/System
+      tcl:
+        blacklist_implicits: true
+        include: *system_pckg
+        all:
+          autoload: direct
+          conflict:
+            - '{name}'
+          environment:
+            set:
+              ${PACKAGE}_INCLUDE_DIR: '{prefix}/include'
+              ${PACKAGE}_LIBRARY_DIR: '{prefix}/lib'
+              ${PACKAGE}_VERSION: '{version}'
+        projections: *unified_modules_projections
+    Tools:
+      use_view: Tools
+      arch_folder: false
+      enable:
+      - tcl
+      roots:
+        tcl: /afs/psi.ch/sys/spack-rhel7/Tools
+      tcl:
+        blacklist_implicits: true
+        include: *tools_pckg
+        all:
+          autoload: direct
+          conflict:
+            - '{name}'
+          environment:
+            set:
+              ${PACKAGE}_INCLUDE_DIR: '{prefix}/include'
+              ${PACKAGE}_LIBRARY_DIR: '{prefix}/lib'
+              ${PACKAGE}_VERSION: '{version}'
+        projections: *unified_modules_projections
+    prefix_inspections:
+      '':
+        - CMAKE_PREFIX_PATH
+      bin:
+        - PATH
+      include:
+        - C_INCLUDE_PATH
+        - CPLUS_INCLUDE_PATH
+      lib:
+        - LIBRARY_PATH
+        - LD_LIBRARY_PATH
+      lib/pkgconfig:
+        - PKG_CONFIG_PATH
+      lib64:
+        - LIBRARY_PATH
+        - LD_LIBRARY_PATH
+      lib64/pkgconfig:
+        - PKG_CONFIG_PATH
+      man:
+        - MANPATH
+      share/aclocal:
+        - ACLOCAL_PATH
+      share/man:
+        - MANPATH
+      share/pkgconfig:
+        - PKG_CONFIG_PATH
+#<<<
   specs:
     - matrix:
         - - $compiler_pckg
@@ -167,7 +420,7 @@ spack:
         ~mpi: '{name}_serial/{version}/{compiler.name}/{compiler.version}'
       root: /afs/psi.ch/sys/spack-rhel7/Compilers
       select: *compiler_pckg
-    cuda:
+    Cuda:
       link: roots
       link_type: symlink
       projections: *unified_projections
@@ -197,18 +450,18 @@ spack:
       projections: *unified_projections
       root: /afs/psi.ch/sys/spack-rhel7/Librairies
       select: *librairies_pckg
-    MK:
-      link: roots
-      link_type: symlink
-      projections: *unified_projections
-      root: /afs/psi.ch/sys/spack-rhel7/MK
-      select: *MX_pckg
     MPI:
       link: roots
       link_type: symlink
       projections: *unified_projections
       root: /afs/psi.ch/sys/spack-rhel7/MPI
       select: *MPI_pckg
+    MX:
+      link: roots
+      link_type: symlink
+      projections: *unified_projections
+      root: /afs/psi.ch/sys/spack-rhel7/MX
+      select: *MX_pckg
     Programming:
       link: roots
       link_type: symlink