diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..d39052b9f2db2199d69084b80032a37d29bf7cee
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,42 @@
+.DS_Store
+.*env/
+.pyenv*/
+.pytest/
+.python-version
+.ipynb_checkpoints/
+.python-version
+.coverage_html/
+__pycache__
+.mypy_cache
+*.pyc
+*.egg-info/
+/data/
+.volumes/
+.pytest_cache/
+.coverage*
+htmlcov
+try.http
+project/
+test_*/
+local/
+target/
+*.swp
+*.vscode
+.vscode/
+vscode/
+nomad.yaml
+gunicorn.log.conf
+gunicorn.conf
+build/
+dist/
+setup.json
+parser.osio.log
+gui/src/metainfo.json
+gui/src/searchQuantities.json
+gui/src/toolkitMetadata.json
+gui/src/unitsData.js
+examples/workdir/
+gunicorn.log.conf
+nomad/gitinfo.py
+*/node_modules/
+
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000000000000000000000000000000000000..d79885bc72c3516de368c054cae7fbe162c74010
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,18 @@
+image: python:3.7
+
+stages:
+  - test
+
+linting:
+  stage: test
+  script:
+    - pip install -e .
+    - python -m pycodestyle --ignore=E501,E701,E731 north tests
+    - python -m pylint north tests
+    - python -m mypy --ignore-missing-imports --follow-imports=silent --no-strict-optional north tests
+
+tests:
+  stage: test
+  script:
+    - pip install -e .
+    - python -m pytest --cov=north -sv tests
diff --git a/.pylintrc b/.pylintrc
new file mode 100644
index 0000000000000000000000000000000000000000..4b96ddc650abee9467b4010c12382677081b5e9f
--- /dev/null
+++ b/.pylintrc
@@ -0,0 +1,813 @@
+[MASTER]
+
+# A comma-separated list of package or module names from where C extensions may
+# be loaded. Extensions are loading into the active Python interpreter and may
+# run arbitrary code.
+extension-pkg-whitelist=pydantic
+
+# Add files or directories to the blacklist. They should be base names, not
+# paths.
+ignore=CVS
+
+# Add files or directories matching the regex patterns to the blacklist. The
+# regex matches against base names, not paths.
+ignore-patterns=
+
+# Python code to execute, usually for sys.path manipulation such as
+# pygtk.require().
+#init-hook=
+
+# Use multiple processes to speed up Pylint. Specifying 0 will auto-detect the
+# number of processors available to use.
+jobs=1
+
+# Control the amount of potential inferred values when inferring a single
+# object. This can help the performance when dealing with large functions or
+# complex, nested conditions.
+limit-inference-results=100
+
+# List of plugins (as comma separated values of python modules names) to load,
+# usually to register additional checkers.
+load-plugins=
+
+# Pickle collected data for later comparisons.
+persistent=yes
+
+# Specify a configuration file.
+#rcfile=
+
+# When enabled, pylint would attempt to guess common misconfiguration and emit
+# user-friendly hints instead of false-positive error messages.
+suggestion-mode=yes
+
+# Allow loading of arbitrary C extensions. Extensions are imported into the
+# active Python interpreter and may run arbitrary code.
+unsafe-load-any-extension=no
+
+
+[MESSAGES CONTROL]
+
+# Only show warnings with the listed confidence levels. Leave empty to show
+# all. Valid levels: HIGH, INFERENCE, INFERENCE_FAILURE, UNDEFINED.
+confidence=
+
+# Disable the message, report, category or checker with the given id(s). You
+# can either give multiple identifiers separated by comma (,) or put this
+# option multiple times (only on the command line, not in the configuration
+# file where it should appear only once). You can also use "--disable=all" to
+# disable everything first and then reenable specific checks. For example, if
+# you want to run only the similarities checker, you can use "--disable=all
+# --enable=similarities". If you want to run only the classes checker, but have
+# no Warning level messages displayed, use "--disable=all --enable=classes
+# --disable=W".
+disable=blacklisted-name,
+        invalid-name,
+        missing-docstring,
+        empty-docstring,
+        unneeded-not,
+        singleton-comparison,
+        misplaced-comparison-constant,
+        unidiomatic-typecheck,
+        consider-using-enumerate,
+        consider-iterating-dictionary,
+        bad-classmethod-argument,
+        bad-mcs-method-argument,
+        bad-mcs-classmethod-argument,
+        single-string-used-for-slots,
+        line-too-long,
+        too-many-lines,
+        trailing-whitespace,
+        missing-final-newline,
+        trailing-newlines,
+        multiple-statements,
+        superfluous-parens,
+        bad-whitespace,
+        mixed-line-endings,
+        unexpected-line-ending-format,
+        bad-continuation,
+        wrong-spelling-in-comment,
+        wrong-spelling-in-docstring,
+        invalid-characters-in-docstring,
+        multiple-imports,
+        wrong-import-order,
+        ungrouped-imports,
+        wrong-import-position,
+        useless-import-alias,
+        old-style-class,
+        len-as-condition,
+        raw-checker-failed,
+        bad-inline-option,
+        locally-disabled,
+        locally-enabled,
+        file-ignored,
+        suppressed-message,
+        useless-suppression,
+        deprecated-pragma,
+        use-symbolic-message-instead,
+        c-extension-no-member,
+        literal-comparison,
+        comparison-with-itself,
+        no-self-use,
+        no-classmethod-decorator,
+        no-staticmethod-decorator,
+        useless-object-inheritance,
+        cyclic-import,
+        duplicate-code,
+        too-many-ancestors,
+        too-many-instance-attributes,
+        too-few-public-methods,
+        too-many-public-methods,
+        too-many-return-statements,
+        too-many-branches,
+        too-many-arguments,
+        too-many-locals,
+        too-many-statements,
+        too-many-boolean-expressions,
+        consider-merging-isinstance,
+        too-many-nested-blocks,
+        simplifiable-if-statement,
+        redefined-argument-from-local,
+        no-else-return,
+        consider-using-ternary,
+        trailing-comma-tuple,
+        stop-iteration-return,
+        simplify-boolean-expression,
+        inconsistent-return-statements,
+        useless-return,
+        consider-swap-variables,
+        consider-using-join,
+        consider-using-in,
+        consider-using-get,
+        chained-comparison,
+        consider-using-dict-comprehension,
+        consider-using-set-comprehension,
+        dangerous-default-value,
+        pointless-statement,
+        pointless-string-statement,
+        expression-not-assigned,
+        unnecessary-pass,
+        unnecessary-lambda,
+        deprecated-lambda,
+        assign-to-new-keyword,
+        useless-else-on-loop,
+        exec-used,
+        eval-used,
+        confusing-with-statement,
+        using-constant-test,
+        comparison-with-callable,
+        lost-exception,
+        assert-on-tuple,
+        attribute-defined-outside-init,
+        bad-staticmethod-argument,
+        protected-access,
+        arguments-differ,
+        signature-differs,
+        abstract-method,
+        super-init-not-called,
+        no-init,
+        non-parent-init-called,
+        useless-super-delegation,
+        bad-indentation,
+        mixed-indentation,
+        lowercase-l-suffix,
+        wildcard-import,
+        deprecated-module,
+        relative-import,
+        reimported,
+        import-self,
+        misplaced-future,
+        fixme,
+        invalid-encoded-data,
+        global-variable-undefined,
+        global-statement,
+        global-at-module-level,
+        unused-argument,
+        unused-wildcard-import,
+        redefined-outer-name,
+        redefined-builtin,
+        redefine-in-handler,
+        undefined-loop-variable,
+        cell-var-from-loop,
+        possibly-unused-variable,
+        self-cls-assignment,
+        bare-except,
+        broad-except,
+        duplicate-except,
+        try-except-raise,
+        nonstandard-exception,
+        raising-format-tuple,
+        property-on-old-class,
+        keyword-arg-before-vararg,
+        logging-not-lazy,
+        logging-format-interpolation,
+        logging-fstring-interpolation,
+        bad-format-string-key,
+        unused-format-string-key,
+        missing-format-argument-key,
+        unused-format-string-argument,
+        format-combined-specification,
+        missing-format-attribute,
+        invalid-format-index,
+        anomalous-unicode-escape-in-string,
+        boolean-datetime,
+        redundant-unittest-assert,
+        deprecated-method,
+        bad-thread-instantiation,
+        shallow-copy-environ,
+        invalid-envvar-default,
+        subprocess-popen-preexec-fn,
+        apply-builtin,
+        basestring-builtin,
+        buffer-builtin,
+        cmp-builtin,
+        coerce-builtin,
+        execfile-builtin,
+        file-builtin,
+        long-builtin,
+        raw_input-builtin,
+        reduce-builtin,
+        standarderror-builtin,
+        unicode-builtin,
+        xrange-builtin,
+        coerce-method,
+        delslice-method,
+        getslice-method,
+        setslice-method,
+        no-absolute-import,
+        old-division,
+        dict-iter-method,
+        dict-view-method,
+        next-method-called,
+        metaclass-assignment,
+        indexing-exception,
+        raising-string,
+        reload-builtin,
+        oct-method,
+        hex-method,
+        nonzero-method,
+        cmp-method,
+        input-builtin,
+        round-builtin,
+        intern-builtin,
+        unichr-builtin,
+        map-builtin-not-iterating,
+        zip-builtin-not-iterating,
+        range-builtin-not-iterating,
+        filter-builtin-not-iterating,
+        using-cmp-argument,
+        eq-without-hash,
+        div-method,
+        idiv-method,
+        rdiv-method,
+        exception-message-attribute,
+        invalid-str-codec,
+        sys-max-int,
+        bad-python3-import,
+        deprecated-string-function,
+        deprecated-str-translate-call,
+        deprecated-itertools-function,
+        deprecated-types-field,
+        next-method-defined,
+        dict-items-not-iterating,
+        dict-keys-not-iterating,
+        dict-values-not-iterating,
+        deprecated-operator-function,
+        deprecated-urllib-function,
+        xreadlines-attribute,
+        deprecated-sys-function,
+        exception-escape,
+        comprehension-escape,
+        mongoengine-placeholder,
+        unspecified-encoding
+
+# Enable the message, report, category or checker with the given id(s). You can
+# either give multiple identifier separated by comma (,) or put this option
+# multiple time (only on the command line, not in the configuration file where
+# it should appear only once). See also the "--disable" option for examples.
+enable=syntax-error,
+       unrecognized-inline-option,
+       bad-option-value,
+       init-is-generator,
+       return-in-init,
+       function-redefined,
+       not-in-loop,
+       return-outside-function,
+       yield-outside-function,
+       return-arg-in-generator,
+       nonexistent-operator,
+       duplicate-argument-name,
+       abstract-class-instantiated,
+       bad-reversed-sequence,
+       too-many-star-expressions,
+       invalid-star-assignment-target,
+       star-needs-assignment-target,
+       nonlocal-and-global,
+       continue-in-finally,
+       nonlocal-without-binding,
+       used-prior-global-declaration,
+       misplaced-format-function,
+       method-hidden,
+       access-member-before-definition,
+       no-method-argument,
+       no-self-argument,
+       invalid-slots-object,
+       assigning-non-slot,
+       invalid-slots,
+       inherit-non-class,
+       inconsistent-mro,
+       duplicate-bases,
+       non-iterator-returned,
+       unexpected-special-method-signature,
+       invalid-length-returned,
+       import-error,
+       relative-beyond-top-level,
+       used-before-assignment,
+       undefined-variable,
+       undefined-all-variable,
+       invalid-all-object,
+       no-name-in-module,
+       unbalanced-tuple-unpacking,
+       unpacking-non-sequence,
+       bad-except-order,
+       raising-bad-type,
+       bad-exception-context,
+       misplaced-bare-raise,
+       raising-non-exception,
+       notimplemented-raised,
+       catching-non-exception,
+       slots-on-old-class,
+       super-on-old-class,
+       bad-super-call,
+       missing-super-argument,
+       no-member,
+       not-callable,
+       assignment-from-no-return,
+       no-value-for-parameter,
+       too-many-function-args,
+       unexpected-keyword-arg,
+       redundant-keyword-arg,
+       missing-kwoa,
+       invalid-sequence-index,
+       invalid-slice-index,
+       assignment-from-none,
+       not-context-manager,
+       invalid-unary-operand-type,
+       unsupported-binary-operation,
+       repeated-keyword,
+       not-an-iterable,
+       not-a-mapping,
+       unsupported-membership-test,
+       unsubscriptable-object,
+       unsupported-assignment-operation,
+       unsupported-delete-operation,
+       invalid-metaclass,
+       unhashable-dict-key,
+       logging-unsupported-format,
+       logging-format-truncated,
+       logging-too-many-args,
+       logging-too-few-args,
+       bad-format-character,
+       truncated-format-string,
+       mixed-format-string,
+       format-needs-mapping,
+       missing-format-string-key,
+       too-many-format-args,
+       too-few-format-args,
+       bad-str-strip-call,
+       invalid-envvar-value,
+       print-statement,
+       parameter-unpacking,
+       unpacking-in-except,
+       old-raise-syntax,
+       backtick,
+       long-suffix,
+       old-ne-operator,
+       old-octal-literal,
+       import-star-module-level,
+       non-ascii-bytes-literal,
+       yield-inside-async-function,
+       not-async-context-manager,
+       fatal,
+       astroid-error,
+       parse-error,
+       method-check-failed,
+       unreachable,
+       duplicate-key,
+       unnecessary-semicolon,
+       global-variable-not-assigned,
+       unused-import,
+       unused-variable,
+       binary-op-exception,
+       bad-format-string,
+       anomalous-backslash-in-string,
+       bad-open-mode
+
+
+[REPORTS]
+
+# Python expression which should return a note less than 10 (10 is the highest
+# note). You have access to the variables errors warning, statement which
+# respectively contain the number of errors / warnings messages and the total
+# number of statements analyzed. This is used by the global evaluation report
+# (RP0004).
+evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)
+
+# Template used to display messages. This is a python new-style format string
+# used to format the message information. See doc for all details.
+#msg-template=
+
+# Set the output format. Available formats are text, parseable, colorized, json
+# and msvs (visual studio). You can also give a reporter class, e.g.
+# mypackage.mymodule.MyReporterClass.
+output-format=text
+
+# Tells whether to display a full report or only the messages.
+reports=no
+
+# Activate the evaluation score.
+score=yes
+
+
+[REFACTORING]
+
+# Maximum number of nested blocks for function / method body
+max-nested-blocks=5
+
+# Complete name of functions that never returns. When checking for
+# inconsistent-return-statements if a never returning function is called then
+# it will be considered as an explicit return statement and no message will be
+# printed.
+never-returning-functions=sys.exit
+
+
+[BASIC]
+
+# Naming style matching correct argument names.
+argument-naming-style=snake_case
+
+# Regular expression matching correct argument names. Overrides argument-
+# naming-style.
+#argument-rgx=
+
+# Naming style matching correct attribute names.
+attr-naming-style=snake_case
+
+# Regular expression matching correct attribute names. Overrides attr-naming-
+# style.
+#attr-rgx=
+
+# Bad variable names which should always be refused, separated by a comma.
+bad-names=foo,
+          bar,
+          baz,
+          toto,
+          tutu,
+          tata
+
+# Naming style matching correct class attribute names.
+class-attribute-naming-style=any
+
+# Regular expression matching correct class attribute names. Overrides class-
+# attribute-naming-style.
+#class-attribute-rgx=
+
+# Naming style matching correct class names.
+class-naming-style=PascalCase
+
+# Regular expression matching correct class names. Overrides class-naming-
+# style.
+#class-rgx=
+
+# Naming style matching correct constant names.
+const-naming-style=UPPER_CASE
+
+# Regular expression matching correct constant names. Overrides const-naming-
+# style.
+#const-rgx=
+
+# Minimum line length for functions/classes that require docstrings, shorter
+# ones are exempt.
+docstring-min-length=-1
+
+# Naming style matching correct function names.
+function-naming-style=snake_case
+
+# Regular expression matching correct function names. Overrides function-
+# naming-style.
+#function-rgx=
+
+# Good variable names which should always be accepted, separated by a comma.
+good-names=i,
+           j,
+           k,
+           ex,
+           Run,
+           _
+
+# Include a hint for the correct naming format with invalid-name.
+include-naming-hint=no
+
+# Naming style matching correct inline iteration names.
+inlinevar-naming-style=any
+
+# Regular expression matching correct inline iteration names. Overrides
+# inlinevar-naming-style.
+#inlinevar-rgx=
+
+# Naming style matching correct method names.
+method-naming-style=snake_case
+
+# Regular expression matching correct method names. Overrides method-naming-
+# style.
+#method-rgx=
+
+# Naming style matching correct module names.
+module-naming-style=snake_case
+
+# Regular expression matching correct module names. Overrides module-naming-
+# style.
+#module-rgx=
+
+# Colon-delimited sets of names that determine each other's naming style when
+# the name regexes allow several styles.
+name-group=
+
+# Regular expression which should only match function or class names that do
+# not require a docstring.
+no-docstring-rgx=^_
+
+# List of decorators that produce properties, such as abc.abstractproperty. Add
+# to this list to register other decorators that produce valid properties.
+# These decorators are taken in consideration only for invalid-name.
+property-classes=abc.abstractproperty
+
+# Naming style matching correct variable names.
+variable-naming-style=snake_case
+
+# Regular expression matching correct variable names. Overrides variable-
+# naming-style.
+#variable-rgx=
+
+
+[FORMAT]
+
+# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
+expected-line-ending-format=
+
+# Regexp for a line that is allowed to be longer than the limit.
+ignore-long-lines=^\s*(# )?<?https?://\S+>?$
+
+# Number of spaces of indent required inside a hanging  or continued line.
+indent-after-paren=4
+
+# String used as indentation unit. This is usually "    " (4 spaces) or "\t" (1
+# tab).
+indent-string='    '
+
+# Maximum number of characters on a single line.
+max-line-length=100
+
+# Maximum number of lines in a module.
+max-module-lines=1000
+
+# List of optional constructs for which whitespace checking is disabled. `dict-
+# separator` is used to allow tabulation in dicts, etc.: {1  : 1,\n222: 2}.
+# `trailing-comma` allows a space between comma and closing bracket: (a, ).
+# `empty-line` allows space-only lines.
+no-space-check=trailing-comma,
+               dict-separator
+
+# Allow the body of a class to be on the same line as the declaration if body
+# contains single statement.
+single-line-class-stmt=no
+
+# Allow the body of an if to be on the same line as the test if there is no
+# else.
+single-line-if-stmt=no
+
+
+[LOGGING]
+
+# Logging modules to check that the string format arguments are in logging
+# function parameter format.
+logging-modules=logging
+
+
+[MISCELLANEOUS]
+
+# List of note tags to take in consideration, separated by a comma.
+notes=FIXME,
+      XXX,
+      TODO
+
+
+[SIMILARITIES]
+
+# Ignore comments when computing similarities.
+ignore-comments=yes
+
+# Ignore docstrings when computing similarities.
+ignore-docstrings=yes
+
+# Ignore imports when computing similarities.
+ignore-imports=no
+
+# Minimum lines number of a similarity.
+min-similarity-lines=4
+
+
+[SPELLING]
+
+# Limits count of emitted suggestions for spelling mistakes.
+max-spelling-suggestions=4
+
+# Spelling dictionary name. Available dictionaries: none. To make it working
+# install python-enchant package..
+spelling-dict=
+
+# List of comma separated words that should not be checked.
+spelling-ignore-words=
+
+# A path to a file that contains private dictionary; one word per line.
+spelling-private-dict-file=
+
+# Tells whether to store unknown words to indicated private dictionary in
+# --spelling-private-dict-file option instead of raising a message.
+spelling-store-unknown-words=no
+
+
+[TYPECHECK]
+
+# List of decorators that produce context managers, such as
+# contextlib.contextmanager. Add to this list to register other decorators that
+# produce valid context managers.
+contextmanager-decorators=contextlib.contextmanager
+
+# List of members which are set dynamically and missed by pylint inference
+# system, and so shouldn't trigger E1101 when accessed. Python regular
+# expressions are accepted.
+generated-members=
+
+# Tells whether missing members accessed in mixin class should be ignored. A
+# mixin class is detected if its name ends with "mixin" (case insensitive).
+ignore-mixin-members=yes
+
+# Tells whether to warn about missing members when the owner of the attribute
+# is inferred to be None.
+ignore-none=yes
+
+# This flag controls whether pylint should warn about no-member and similar
+# checks whenever an opaque object is returned when inferring. The inference
+# can return multiple potential results while evaluating a Python object, but
+# some branches might not be evaluated, which results in partial inference. In
+# that case, it might be useful to still emit no-member and other checks for
+# the rest of the inferred objects.
+ignore-on-opaque-inference=yes
+
+# List of class names for which member attributes should not be checked (useful
+# for classes with dynamically set attributes). This supports the use of
+# qualified names.
+ignored-classes=optparse.Values,thread._local,_thread._local,SearchResponse
+
+# List of module names for which member attributes should not be checked
+# (useful for modules/projects where namespaces are manipulated during runtime
+# and thus existing member attributes cannot be deduced by static analysis. It
+# supports qualified module names, as well as Unix pattern matching.
+ignored-modules=
+
+# Show a hint with possible names when a member name was not found. The aspect
+# of finding the hint is based on edit distance.
+missing-member-hint=yes
+
+# The minimum edit distance a name should have in order to be considered a
+# similar match for a missing member name.
+missing-member-hint-distance=1
+
+# The total number of similar names that should be taken in consideration when
+# showing a hint for a missing member.
+missing-member-max-choices=1
+
+
+[VARIABLES]
+
+# List of additional names supposed to be defined in builtins. Remember that
+# you should avoid to define new builtins when possible.
+additional-builtins=
+
+# Tells whether unused global variables should be treated as a violation.
+allow-global-unused-variables=yes
+
+# List of strings which can identify a callback function by name. A callback
+# name must start or end with one of those strings.
+callbacks=cb_,
+          _cb
+
+# A regular expression matching the name of dummy variables (i.e. expected to
+# not be used).
+dummy-variables-rgx=_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy|^ignored_|^unused_
+
+# Argument names that match this expression will be ignored. Default to name
+# with leading underscore.
+ignored-argument-names=_.*|^ignored_|^unused_
+
+# Tells whether we should check for unused import in __init__ files.
+init-import=no
+
+# List of qualified module names which can have objects that can redefine
+# builtins.
+redefining-builtins-modules=six.moves,past.builtins,future.builtins,builtins,io
+
+
+[CLASSES]
+
+# List of method names used to declare (i.e. assign) instance attributes.
+defining-attr-methods=__init__,
+                      __new__,
+                      setUp
+
+# List of member names, which should be excluded from the protected access
+# warning.
+exclude-protected=_asdict,
+                  _fields,
+                  _replace,
+                  _source,
+                  _make
+
+# List of valid names for the first argument in a class method.
+valid-classmethod-first-arg=cls
+
+# List of valid names for the first argument in a metaclass class method.
+valid-metaclass-classmethod-first-arg=cls
+
+
+[DESIGN]
+
+# Maximum number of arguments for function / method.
+max-args=5
+
+# Maximum number of attributes for a class (see R0902).
+max-attributes=7
+
+# Maximum number of boolean expressions in an if statement.
+max-bool-expr=5
+
+# Maximum number of branch for function / method body.
+max-branches=12
+
+# Maximum number of locals for function / method body.
+max-locals=15
+
+# Maximum number of parents for a class (see R0901).
+max-parents=7
+
+# Maximum number of public methods for a class (see R0904).
+max-public-methods=20
+
+# Maximum number of return / yield for function / method body.
+max-returns=6
+
+# Maximum number of statements in function / method body.
+max-statements=50
+
+# Minimum number of public methods for a class (see R0903).
+min-public-methods=2
+
+
+[IMPORTS]
+
+# Allow wildcard imports from modules that define __all__.
+allow-wildcard-with-all=no
+
+# Analyse import fallback blocks. This can be used to support both Python 2 and
+# 3 compatible code, which means that the block might have code that exists
+# only in one or another interpreter, leading to false positives when analysed.
+analyse-fallback-blocks=no
+
+# Deprecated modules which should not be used, separated by a comma.
+deprecated-modules=optparse,tkinter.tix
+
+# Create a graph of external dependencies in the given file (report RP0402 must
+# not be disabled).
+ext-import-graph=
+
+# Create a graph of every (i.e. internal and external) dependencies in the
+# given file (report RP0402 must not be disabled).
+import-graph=
+
+# Create a graph of internal dependencies in the given file (report RP0402 must
+# not be disabled).
+int-import-graph=
+
+# Force import order to recognize a module as part of the standard
+# compatibility libraries.
+known-standard-library=
+
+# Force import order to recognize a module as part of a third party library.
+known-third-party=enchant
+
+
+[EXCEPTIONS]
+
+# Exceptions that will emit a warning when being caught. Defaults to
+# "Exception".
+overgeneral-exceptions=Exception
diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000000000000000000000000000000000000..2ee9f19a2b60e03be8c464aaa202472d5b766d54
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,2 @@
+Markus Scheidgen <markus.scheidgen@gmail.com>
+TODO developers add yourself
diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000000000000000000000000000000000000..c1d53f41fa7732b912d85974d8ef6ad543f8518d
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1,9 @@
+recursive-include dependencies/optimade-python-tools *.txt *.g *.py *.ini *.json
+recursive-include nomad *.json *.j2 *.md *.yaml
+include nomad/units/*.txt
+include README.md
+include LICENSE.txt
+include requirements.txt
+include auto_complete_install.sh
+include setup.json
+recursive-include nomad/app/static *.css *.ico *.html *.json *.js *.map *.txt *.svg *.png
\ No newline at end of file
diff --git a/README.md b/README.md
index fcdbef7dee8000409d7e51b769ba95debc92cbae..407fe385f993ecb8a60952fac91710a9d4d5c33a 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,68 @@
+[![pipeline status](https://gitlab.mpcdf.mpg.de/nomad-lab/nomad-remote-tools-hub/badges/main/pipeline.svg)](https://gitlab.mpcdf.mpg.de/nomad-lab/nomad-remote-tools-hub/commits/main)
+[![coverage report](https://gitlab.mpcdf.mpg.de/nomad-lab/nomad-remote-tools-hub/badges/main/coverage.svg)](https://gitlab.mpcdf.mpg.de/nomad-lab/nomad-remote-tools-hub/commits/main)
+
 # NOMAD remote tools hub (north)
 
 Lets you run containarized tools remotly.
 
+## Getting started
+
+Clone the project
+
+```sh
+git clone git@gitlab.mpcdf.mpg.de:nomad-lab/nomad-remote-tools-hub.git
+cd nomad-remote-tools-hub
+```
+
+Optionaly, checkout the desired branch (e.g. develop) and create a feature branch
+```
+git checkout develop
+git checkout -b my-feature
+```
+
+Create a virtual environment based on Python 3 (>3.7).
+```sh
+pip install virtualenv
+virtualenv -p `which python3` .pyenv
+source .pyenv/bin/activate
+```
+
+Install the nomad-remote-tools-hub package.
+```sh
+pip install -e .
+```
+
+Run the app with uvivcorn:
+```sh
+uvicorn north.app.main:app
+```
+
+Run the tests with pytest:
+```sh
+pytest -svx test
+```
+
+We recomment using vs-code. Here are vs-code settings that match the CI/CD linting:
+```json
+{
+    "python.pythonPath": ".pyenv/bin/python",
+    "editor.rulers": [90],
+    "editor.renderWhitespace": "all",
+    "editor.tabSize": 4,
+    "files.trimTrailingWhitespace": true,
+    "python.linting.pycodestylePath": "pycodestyle",
+    "python.linting.pycodestyleEnabled": true,
+    "python.linting.pycodestyleArgs": ["--ignore=E501,E701,E731"],
+    "python.linting.mypyEnabled": true,
+    "python.linting.pylintEnabled": true,
+}
+```
+
+## Project structure
+
+- `north` - The Python code
+- `north/app` - The [FastAPI](https://fastapi.tiangolo.com/) application that runs the north app
+- `north/config` - All applications settings
+- `tests` - The [pytest](https://docs.pytest.org/) tests
+- `setup.py` - Install the package with pip
+- `docker` - All the docker files, scripts for creating/managing images, documentation
diff --git a/docker/README.md b/docker/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..8e227aef516decaaeee63840be63da51abbeb423
--- /dev/null
+++ b/docker/README.md
@@ -0,0 +1,4 @@
+**TODO** This directory should contain the docker files and image documentation
+- one folder per "tool"
+- also for images necessary for tests (e.g. nginx with static rev.proxy rules)
+- scripts to create images and push them to the projects registry
\ No newline at end of file
diff --git a/north/__init__.py b/north/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..7732f327207b056e58ef63290c43033a08ab2f62
--- /dev/null
+++ b/north/__init__.py
@@ -0,0 +1,19 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from .config import config
diff --git a/north/app/__init__.py b/north/app/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/north/app/main.py b/north/app/main.py
new file mode 100644
index 0000000000000000000000000000000000000000..cdba8ead14d7f7cb2c8d7a7f3afdd618cb91a8ec
--- /dev/null
+++ b/north/app/main.py
@@ -0,0 +1,61 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from fastapi import FastAPI
+from fastapi.responses import HTMLResponse
+from starlette.exceptions import HTTPException as StarletteHTTPException
+from fastapi.exception_handlers import http_exception_handler as default_http_exception_handler
+
+from north import config
+
+from .routes import instances
+from .routes import tools
+
+app = FastAPI(
+    title='NOMAD remote tools hub API',
+    version=config.version,
+    description=(
+        'This is the API for the NOMAD remote tools hub. It allows to run dockerized '
+        'tools remotely.'))
+
+app.include_router(tools.router, prefix='/tools')
+app.include_router(instances.router, prefix='/instances')
+
+
+# A default 404 response with a link to the API dashboard for convinience
+@app.exception_handler(StarletteHTTPException)
+async def http_exception_handler(request, exc):
+    if exc.status_code != 404:
+        return await default_http_exception_handler(request, exc)
+
+    try:
+        accept = request.headers['accept']
+    except Exception:
+        accept = None
+
+    if accept is not None and 'html' in accept:
+        return HTMLResponse(status_code=404, content='''
+            <html>
+                <head><title>NOMAD remote tools hub app</title></head>
+                <body>
+                    <h1>NOMAD remote tools hub app</h1>
+                    <h2>apis</h2>
+                    <a href="/docs">OpenAPI dashboard</a>
+                </body>
+            </html>
+            ''')
diff --git a/north/app/models.py b/north/app/models.py
new file mode 100644
index 0000000000000000000000000000000000000000..eca8c02e28d2a929072ab1303e820632bd3972fe
--- /dev/null
+++ b/north/app/models.py
@@ -0,0 +1,57 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from typing import List, Dict, Optional
+from pydantic import BaseModel, validator, Field
+
+# TODO This exemplifies pydantic models a little bit. But, this is just for demonstration.
+# The models completed/rewritten and most descriptions are missing.
+
+
+class ToolModel(BaseModel):
+    ''' Model that describes an available tool. '''
+    name: str
+    description: str
+    docker_image: str = Field(..., description='The docker image for this tool.')
+
+
+all_tools: List[ToolModel] = [
+    ToolModel(
+        name='jupyter',
+        description='Basic jupyter run with an empty notebook or on given notebook file.',
+        docker_image='TODO'
+    ),
+    ToolModel(
+        name='hyperspy',
+        description='Run hyperspy on a arbitrary .hdf5 file.',
+        docker_image='TODO'
+    )
+]
+
+tools_map: Dict[str, ToolModel] = {tool.name: tool for tool in all_tools}
+
+
+class InstanceModel(BaseModel):
+    name: str
+    docker_id: Optional[str]
+    tool_name: str
+
+    @validator('tool_name')
+    def validate_tool_name(cls, tool_name):  # pylint: disable=no-self-argument
+        assert tool_name in tools_map, 'Tool must exist.'
+        return tool_name
diff --git a/north/app/routes/instances.py b/north/app/routes/instances.py
new file mode 100644
index 0000000000000000000000000000000000000000..a3b8a3550ef43c4e63795249db64f4434661dfe4
--- /dev/null
+++ b/north/app/routes/instances.py
@@ -0,0 +1,47 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from typing import List
+from fastapi import APIRouter
+
+from north.app.models import InstanceModel
+
+router = APIRouter()
+router_tag = 'instances'
+
+
+@router.get(
+    '/',
+    tags=[router_tag],
+    response_model=List[InstanceModel],
+    response_model_exclude_unset=True,
+    response_model_exclude_none=True)
+async def get_instances():
+    ''' Get a list of all existing tool instances. '''
+    return []
+
+
+@router.post(
+    '/',
+    tags=[router_tag],
+    response_model=InstanceModel,
+    response_model_exclude_unset=True,
+    response_model_exclude_none=True)
+async def post_instances(instance: InstanceModel):
+    ''' Create a new tool instance. '''
+    return instance
diff --git a/north/app/routes/tools.py b/north/app/routes/tools.py
new file mode 100644
index 0000000000000000000000000000000000000000..b54c1d2a26feb959639e0133348b47393d248bb3
--- /dev/null
+++ b/north/app/routes/tools.py
@@ -0,0 +1,35 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from typing import List
+from fastapi import APIRouter
+
+from north.app.models import ToolModel, all_tools
+
+router = APIRouter()
+router_tag = 'tools'
+
+
+@router.get(
+    '/',
+    tags=[router_tag],
+    response_model=List[ToolModel],
+    response_model_exclude_unset=True,
+    response_model_exclude_none=True)
+async def get_tools():
+    return all_tools
diff --git a/north/config.py b/north/config.py
new file mode 100644
index 0000000000000000000000000000000000000000..c4d22eba8f3445d9b11f1bba1da64703cbb61b42
--- /dev/null
+++ b/north/config.py
@@ -0,0 +1,70 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+'''
+This config file is based on pydantic's
+[settings management](https://pydantic-docs.helpmanual.io/usage/settings/).
+'''
+
+from typing import Dict, Any
+from pydantic import Field, BaseSettings
+import yaml
+import os.path
+import os
+
+
+class NorthConfig(BaseSettings):
+    secret: str = Field(
+        'this is a secret',
+        description='The secret for generating JWT tokens and other cryptographic material.')
+
+    version: str = Field(
+        'v0.1.0', description='The current application version according to semantic versioning conventions')
+
+    class Config:
+        env_prefix = 'north_'
+        case_sensitive = False
+
+        @classmethod
+        def customise_sources(
+                cls,
+                init_settings,
+                env_settings,
+                file_secret_settings):
+
+            return (
+                init_settings,
+                env_settings,
+                yaml_config_settings_source, file_secret_settings)
+
+
+def yaml_config_settings_source(settings: BaseSettings) -> Dict[str, Any]:
+    if not os.path.exists('north.yaml'):
+        return {}
+
+    try:
+        with open('north.yaml') as f:
+            data = yaml.load(f, Loader=yaml.FullLoader)
+        if data is None:
+            return {}
+        return data
+    except yaml.YAMLError as e:
+        raise e
+
+
+config = NorthConfig()
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000000000000000000000000000000000000..464e64af096873e00b23f5b97b6bbb7f5a69852e
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,11 @@
+pyyaml
+fastapi
+requests
+setuptools
+mypy
+pylint
+pycodestyle
+pytest
+pytest-cov
+types-PyYAML
+types-requests
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000000000000000000000000000000000000..fca1381d70e1a78ad5d70e7d5632bc92696fa65b
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,38 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from setuptools import setup, find_packages
+
+
+with open('requirements.txt') as f:
+    requirements = f.read().splitlines()
+
+
+def main():
+    setup(
+        name='nomad-remote-tools-hub',
+        version='0.1.0',
+        description='NOMAD remote tools hub allows to run containarized tools remotely',
+        author='The NOMAD Authors',
+        license='APACHE 2.0',
+        packages=find_packages(exclude=['tests', 'tests.*']),
+        install_requires=requirements)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..db96892bc39fc672a63d1827096f3e0fcf7a818c
--- /dev/null
+++ b/tests/__init__.py
@@ -0,0 +1,17 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
diff --git a/tests/app/__init__.py b/tests/app/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..db96892bc39fc672a63d1827096f3e0fcf7a818c
--- /dev/null
+++ b/tests/app/__init__.py
@@ -0,0 +1,17 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
diff --git a/tests/app/routes/__init__.py b/tests/app/routes/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..db96892bc39fc672a63d1827096f3e0fcf7a818c
--- /dev/null
+++ b/tests/app/routes/__init__.py
@@ -0,0 +1,17 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
diff --git a/tests/app/routes/test_instance.py b/tests/app/routes/test_instance.py
new file mode 100644
index 0000000000000000000000000000000000000000..65573fd54af17fc43c7cbd8521ecb9f4540c4125
--- /dev/null
+++ b/tests/app/routes/test_instance.py
@@ -0,0 +1,35 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import pytest
+
+
+def test_get_instances(api):
+    response = api.get('instances')
+    assert response.status_code == 200, response.text
+    assert len(response.json()) == 0
+
+
+@pytest.mark.parametrize('request_json, status_code', [
+    pytest.param({'name': 'myinstance', 'tool_name': 'jupyter'}, 200, id='ok'),
+    pytest.param({'name': 'myinstance', 'tool_name': 'doesnotexist'}, 422, id='tool-does-not-exist'),
+    pytest.param({'tool_name': 'jupyter'}, 422, id='name-is-missing')
+])
+def test_post_instances(api, request_json, status_code):
+    response = api.post('instances/', json=request_json)
+    assert response.status_code == status_code, response.text
diff --git a/tests/app/routes/test_tools.py b/tests/app/routes/test_tools.py
new file mode 100644
index 0000000000000000000000000000000000000000..293ea8f19d37c132797dd1338dae4959ccfad5ad
--- /dev/null
+++ b/tests/app/routes/test_tools.py
@@ -0,0 +1,25 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from north.app.models import all_tools
+
+
+def test_get_tools(api):
+    response = api.get('tools')
+    assert response.status_code == 200, response.text
+    assert len(response.json()) == len(all_tools)
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000000000000000000000000000000000000..1d07377523fa717988e041606c54b890fc8c1d73
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,32 @@
+#
+# Copyright The NOMAD Authors.
+#
+# This file is part of NOMAD. See https://nomad-lab.eu for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import pytest
+from fastapi.testclient import TestClient
+
+from north.app.main import app
+
+
+@pytest.fixture(scope='session')
+def api():
+    '''
+    This fixture provides an HTTP client with Python requests interface that accesses
+    the api.
+    '''
+    test_client = TestClient(app, base_url='http://testserver')
+    return test_client
diff --git a/tests/pytest.ini b/tests/pytest.ini
new file mode 100644
index 0000000000000000000000000000000000000000..b0e5a945f5415a31f1161ea8fb6f09d1f35ff33b
--- /dev/null
+++ b/tests/pytest.ini
@@ -0,0 +1,3 @@
+[pytest]
+filterwarnings =
+    ignore::DeprecationWarning
\ No newline at end of file