diff --git a/gnu/packages/glicid.scm b/gnu/packages/glicid.scm
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@@ -0,0 +1,241 @@
+(define-module (gnu packages glicid)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix git-download)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix build-system cmake)
+  #:use-module (guix licenses)
+  #:use-module (gnu packages gawk)
+  #:use-module (gnu packages gcc)
+  #:use-module (gnu packages commencement)
+  #:use-module (guix build-system python)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module ((guix utils) #:select (target-64bit?))
+  #:use-module (gnu packages)
+  #:use-module (gnu packages admin)
+  #:use-module (gnu packages autotools)
+  #:use-module (gnu packages base)
+  #:use-module (gnu packages freeipmi)
+  #:use-module (gnu packages linux)
+  #:use-module (gnu packages mpi)
+  #:use-module (gnu packages perl)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages parallel)
+  #:use-module (gnu packages storage)
+  #:use-module (gnu packages networking)
+  #:use-module (gnu packages gtk)  
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages python-science)
+  #:use-module (gnu packages python-xyz)
+  #:use-module (gnu packages readline)
+  #:use-module (gnu packages tcl)
+  #:use-module (gnu packages tls)
+  #:use-module (gnu packages commencement)
+  #:use-module (gnu packages gcc)
+  #:use-module (gnu packages chemistry)
+  #:use-module (gnu packages sphinx)
+  #:use-module (srfi srfi-1)
+  #:use-module (gnu packages mpi)
+  #:use-module (gnu packages sssd)
+  #:use-module (gnu packages web))
+
+
+
+(define-public glicid-custom-slurm-19.05
+ (package 
+  (inherit slurm) 
+  (name "glicid-custom-slurm-19.05")
+  (version "19.05.6")
+  (source 
+   (origin
+    (method url-fetch)
+    (uri (string-append "https://download.schedmd.com/slurm/slurm-" version ".tar.bz2"))
+    (sha256 (base32 "1kj79r8hng5gp98ickgvj3im4gr19nzd3p3p8g6rl75axb8jin7h"))
+   ))
+   (inputs `(("gtk+-2" ,gtk+-2)
+	     ("sssd", sssd)
+		,@(package-inputs slurm)
+  ))  
+))
+
+;; (define-public glicid-custom-slurm glicid-custom-slurm-19.05)
+
+(define-public glicid-custom-slurm-20.02
+ (package 
+  (inherit glicid-custom-slurm-19.05)
+  (name "glicid-custom-slurm-20.02")
+  (version "20.02.2")
+  (source 
+   (origin
+    (method url-fetch)
+    (uri (string-append "https://download.schedmd.com/slurm/slurm-" version ".tar.bz2"))
+    (sha256 (base32 "0bna1kyqphw6v7ca3gyfb3nlcpclc9vx8py55w7l7sv8xxsqrrvy"))
+   ))
+))
+
+
+
+
+(define-public glicid-librdkafka-09
+ (package 
+  (inherit librdkafka) 
+  (name "glicid-librdkafka-09")
+  (version "0.9.2")
+  (source 
+   (origin
+    (method url-fetch)
+    (uri (string-append "https://github.com/edenhill/librdkafka/archive/v" version ".tar.gz"))
+    (sha256 (base32 "0938yn1msaq8xcj5z7b3jcdy6rslh9kxmvz01r8rdcgbarlvchy2"))
+   ))
+))
+
+
+
+(define-public glicid-x2go
+ (package 
+  (name "glicid-x2go")
+  (version "4.1.0.3")
+  (source 
+   (origin
+    (method url-fetch)
+    (uri (string-append "https://code.x2go.org/releases/source/x2goserver/x2goserver-" version ".tar.gz"))
+    (sha256 (base32 "1l6wd708kbipib4ldprfiihqmj4895nifg0bkws4x97majislxk7"))
+   ))
+
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("libtool" ,libtool)))
+
+   (inputs
+    `(("perl" , perl)))
+
+   (build-system gnu-build-system)
+   (synopsis "X2go")
+   (description "X2go")
+   (license "not checked")
+   (home-page "https://wiki.x2go.org")
+  )  
+)
+
+;(define-public glicid-gromacs-openmpi
+; (package
+;  (inherit gromacs)
+;  (name "glicid-gromacs-openmpi")
+;  (inputs `(("openmpi", openmpi)
+;                    ,@(package-inputs gromacs)))
+;  (build-system cmake-build-system)
+;  (arguments
+;       `(#:configure-flags configure-flags)
+;               (append configure-flags          (list "-DGMX_MPI=on"
+;               "-DCMAKE_C_COMPILER=mpicc"
+;               "-DCMAKE_CXX_COMPILER=mpiicxx"
+;               ))
+;  )
+; )
+;)
+
+
+(define-public glicid-gromacs-openmpi
+ (package
+  (inherit gromacs)
+  (name "glicid-gromacs-openmpi")
+  (inputs `(("openmpi", openmpi)
+   ;;         ("openssh", openssh) ;; only for tests... disabled now
+                    ,@(package-inputs gromacs)))
+  (build-system cmake-build-system)
+
+   (arguments
+       `(#:configure-flags
+         (list "-DGMX_DEVELOPER_BUILD=on" ; Needed to run tests
+               ;; Unbundling
+               "-DGMX_USE_LMFIT=EXTERNAL"
+               "-DGMX_BUILD_OWN_FFTW=off"
+               "-DGMX_EXTERNAL_BLAS=on"
+               "-DGMX_EXTERNAL_LAPACK=on"
+               "-DGMX_EXTERNAL_TNG=on"
+               "-DGMX_EXTERNAL_ZLIB=on"
+               "-DGMX_EXTERNAL_TINYXML2=on"
+               ;; special glicid
+               "-DGMX_MPI=on"
+               "-DCMAKE_C_COMPILER=mpicc"
+               "-DCMAKE_CXX_COMPILER=mpicxx"
+	       "-DGMX_DOUBLE=off"
+	       "-DGMX_OPENMP=on"
+               "-DGMX_SIMD=AVX2_256"
+               (string-append "-DTinyXML2_DIR="
+                              (assoc-ref %build-inputs "tinyxml2"))
+               ;; Workaround for cmake/FindSphinx.cmake version parsing that does
+               ;; not understand the guix-wrapped `sphinx-build --version' answer
+               (string-append "-DSPHINX_EXECUTABLE_VERSION="
+                              ,(package-version python-sphinx)))
+         #:tests? #f
+         #:phases
+         (modify-phases %standard-phases
+           (add-after 'unpack 'fixes
+             (lambda* (#:key inputs #:allow-other-keys)
+               ;; Still bundled: part of gromacs, source behind registration
+               ;; but free software anyways
+               ;;(delete-file-recursively "src/external/vmd_molfile")
+               ;; Still bundled: threads-based OpenMPI-compatible fallback
+               ;; designed to be bundled like that
+               ;;(delete-file-recursively "src/external/thread_mpi")
+               ;; Unbundling
+               (delete-file-recursively "src/external/lmfit")
+               (delete-file-recursively "src/external/clFFT")
+               (delete-file-recursively "src/external/fftpack")
+               (delete-file-recursively "src/external/build-fftw")
+               (delete-file-recursively "src/external/tng_io")
+               (delete-file-recursively "src/external/tinyxml2")
+               (delete-file-recursively "src/external/googletest")
+               (copy-recursively (assoc-ref inputs "googletest-source")
+                                 "src/external/googletest")
+               ;; This test warns about the build host hardware, disable
+               (substitute* "src/gromacs/hardware/tests/hardwaretopology.cpp"
+                 (("TEST\\(HardwareTopologyTest, HwlocExecute\\)")
+                  "void __guix_disabled()"))
+               #t)))))
+
+
+
+  )
+
+)
+
+
+
+;; pour futures customisations.
+
+(define-public glicid-openmpi-gcc-10
+ (package
+  (inherit openmpi)
+  (name "glicid-openpmi-gcc-10")
+  (inputs `(("gcc-10", gcc-10)
+            ("gfortran-10", gfortran-10)
+                  ,@(package-inputs openmpi)))
+  )
+)
+
+(define-public glicid-openmpi-gcc-10
+ (package
+  (inherit openmpi)
+  (name "glicid-openpmi-gcc-10")
+  (inputs `(("gcc-10", gcc-10)  
+            ("gfortran-10", gfortran-10)
+                  ,@(package-inputs openmpi)))
+  )
+)  
+
+
+(define-public glicid-gromacs-gcc-10
+ (package
+  (inherit gromacs)
+  (name "glicid-gromacs-gcc-10")
+  (inputs `(("gcc-10", gcc-10)
+            ("gfortran-10", gfortran-10)
+            ("glicid-openmpi-gcc-10", glicid-openmpi-gcc-10)
+                    ,@(package-inputs gromacs)))
+))
+
+
+;;; glicid.scm ends here