diff --git a/.flake8 b/.flake8
new file mode 100644
index 0000000..1faff6b
--- /dev/null
+++ b/.flake8
@@ -0,0 +1,6 @@
+[flake8]
+ignore = E111,I001,I004,I003,E265,E114,E501,I005
+exclude = .git,__pycache__
+max-line-length = 160
+use-flake8-tabs = true
+tab-width = 2
diff --git a/.pylintrc b/.pylintrc
new file mode 100644
index 0000000..8875b2c
--- /dev/null
+++ b/.pylintrc
@@ -0,0 +1,491 @@
+[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=
+
+# 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=missing-module-docstring,
+        missing-class-docstring,
+        missing-function-docstring,
+        broad-except,
+        logging-fstring-interpolation,
+        wrong-import-order
+
+# 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=c-extension-no-member
+
+
+[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)
+
+# snmp used to display messages. This is a python new-style format string
+# used to format the message information. See doc for all details.
+#msg-snmp=
+
+# 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
+
+
+[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
+
+
+[MISCELLANEOUS]
+
+# List of note tags to take in consideration, separated by a comma.
+notes=FIXME,
+      XXX,
+      TODO
+
+
+[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
+
+
+[STRING]
+
+# This flag controls whether the implicit-str-concat-in-sequence should
+# generate a warning on implicit string concatenation in sequences defined over
+# several lines.
+check-str-concat-over-line-jumps=no
+
+
+[LOGGING]
+
+# Format style used to check logging format string. `old` means using %
+# formatting, while `new` is for `{}` formatting.
+logging-format-style=old
+
+# Logging modules to check that the string format arguments are in logging
+# function parameter format.
+logging-modules=
+
+
+[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,
+           e,
+           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=
+
+
+[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
+
+# 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 defining 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
+
+
+[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=2
+
+# 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=200
+
+# Maximum number of lines in a module.
+max-module-lines=1000
+
+# 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
+
+
+[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
+
+
+[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
+
+
+[EXCEPTIONS]
+
+# Exceptions that will emit a warning when being caught. Defaults to
+# "BaseException, Exception".
+overgeneral-exceptions=BaseException,
+                       Exception
diff --git a/.yamllint b/.yamllint
new file mode 100644
index 0000000..b78c6b3
--- /dev/null
+++ b/.yamllint
@@ -0,0 +1,20 @@
+---
+extends: default
+
+rules:
+  line-length: disable
+  colons:
+    level: warning
+  indentation:
+    level: warning
+    indent-sequences: consistent
+  commas:
+    level: warning
+  brackets:
+    level: warning
+  hyphens:
+    level: warning
+  new-line-at-end-of-file: disable
+  quoted-strings:
+    required: only-when-needed
+    level: warning
diff --git a/src/thsf/__init__.py b/src/thsf/__init__.py
index 6c0f6d1..dd48f2a 100644
--- a/src/thsf/__init__.py
+++ b/src/thsf/__init__.py
@@ -15,8 +15,8 @@ from thsf.navbar import Navbar
 # -- Configuration
 # ------------------------------------------------------------------------------
 class AppConfig:
-    """ Flask application config """
-    CONFIG_FILENAME = "config.yml"
+  """ Flask application config """
+  CONFIG_FILENAME = "config.yml"
 
 
 # ------------------------------------------------------------------------------
@@ -41,7 +41,7 @@ try:
     schedule = Schedule()
     navbar = Navbar(config=app.local_config["navbar"])
 except Exception as err:
-  logger.critical("[{}] {}".format(err.__class__, str(err)))
+  logger.critical(f"[{err.__class__}] {str(err)}")
   sys.exit(1)
 
 if app.local_config["log"]["root"]["level"] != "DEBUG":
@@ -54,18 +54,21 @@ if app.local_config["log"]["root"]["level"] != "DEBUG":
 def page_not_found(err):
   return redirect(url_for('index'))
 
+
 def get_slots():
   return backend.get(endpoint=f"events/{app.local_config['pretalx']['event']}/schedules/{app.local_config['pretalx']['schedule']}/").json()
 
+
 def get_speaker_biography(name):
   try:
     speaker_info = backend.get(endpoint=f"events/{app.local_config['pretalx']['event']}/speakers/", params={"q": name}).json()
     logger.debug(speaker_info)
     return speaker_info["results"][0]["biography"].strip()
   except Exception as err:
-    logger.warning(f"UnknownSpeakerError: {name}")
+    logger.warning(f"UnknownSpeakerError: {name} from {str(err)}")
     return None
 
+
 # ------------------------------------------------------------------------------
 # -- Custom filters
 # ------------------------------------------------------------------------------
@@ -79,18 +82,20 @@ def date2dmyhm(date):
   hour, minutes = (splitted_time[0], splitted_time[1].split("+")[0])
   return f"{day}/{month} {hour}:{minutes}"
 
+
 @app.template_filter('date2dayclass')
 def date2dayclass(date):
   classes = {"26/05": "bg1",
              "27/05": "bg2",
-             "28/05": "bg3",}
+             "28/05": "bg3"}
   splitted_date = date.split("-")
   month, day = (splitted_date[1],
                 splitted_date[2].split("T")[0])
   return classes[f"{day}/{month}"]
 
+
 @app.template_filter('toicon')
-def date2dmyhm(slot_type):
+def type2icon(slot_type):
   slot_types = {"Projection": "fa-solid fa-film",
                 "Presentation Courte": "fa-solid fa-person-chalkboard",
                 "DJ Set": "fa-solid fa-guitar",
@@ -101,6 +106,7 @@ def date2dmyhm(slot_type):
                 "Installation": "fa-solid fa-palette"}
   return slot_types[slot_type]
 
+
 # ------------------------------------------------------------------------------
 # -- Routes
 # ------------------------------------------------------------------------------
@@ -114,6 +120,7 @@ def index():
   return render_template("index.html",
                          navbar=navbar.get_from_page(page="/"))
 
+
 @app.route('/planning', methods=['GET'])
 def planning():
   slots = get_slots()
@@ -126,21 +133,25 @@ def planning():
                          navbar=navbar.get_from_page(page="/planning"),
                          filter=["concert", "dj set", "panel discussion", "talk", "screening"])
 
+
 @app.route('/place', methods=['GET'])
 def place():
   return render_template("place.html",
                          navbar=navbar.get_from_page(page="/place"))
 
+
 @app.route('/food', methods=['GET'])
 def food():
   return render_template("food.html",
                          navbar=navbar.get_from_page(page="/food"))
 
+
 @app.route('/goodies', methods=['GET'])
 def goodies():
   return render_template("goodies.html",
                          navbar=navbar.get_from_page(page="/goodies"))
 
+
 @app.route('/concerts', methods=['GET'])
 def concerts():
   slots = get_slots()
@@ -150,6 +161,7 @@ def concerts():
                          navbar=navbar.get_from_page(page="/concerts"),
                          filter=["concert", "dj set"])
 
+
 @app.route('/workshops', methods=['GET'])
 def workshops():
   slots = get_slots()
@@ -159,6 +171,7 @@ def workshops():
                          navbar=navbar.get_from_page(page="/workshops"),
                          filter=["workshop"])
 
+
 @app.route('/screenings', methods=['GET'])
 def screenings():
   slots = get_slots()
@@ -168,6 +181,7 @@ def screenings():
                          navbar=navbar.get_from_page(page="/screenings"),
                          filter=["screening"])
 
+
 @app.route('/discussions', methods=['GET'])
 def discussions():
   slots = get_slots()
@@ -177,6 +191,7 @@ def discussions():
                          navbar=navbar.get_from_page(page="/discussions"),
                          filter=["panel discussion"])
 
+
 @app.route('/exhibitions', methods=['GET'])
 def exhibitions():
   slots = get_slots()
@@ -186,6 +201,7 @@ def exhibitions():
                          navbar=navbar.get_from_page(page="/exhibitions"),
                          filter=["installation"])
 
+
 @app.route('/talks', methods=['GET'])
 def talks():
   slots = get_slots()