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-              GNU GENERAL PUBLIC LICENSE
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-  16. Limitation of Liability.
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-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-              END OF TERMS AND CONDITIONS
-
-     How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<http://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/common/Setup.hs b/common/Setup.hs
deleted file mode 100644
index 4467109..0000000
--- a/common/Setup.hs
+++ /dev/null
@@ -1,2 +0,0 @@
-import           Distribution.Simple
-main = defaultMain
diff --git a/common/common.cabal b/common/common.cabal
deleted file mode 100644
index dffc8d0..0000000
--- a/common/common.cabal
+++ /dev/null
@@ -1,72 +0,0 @@
-Name:                common
-Version:             0.0.1
-License:             GPL-3
-License-file:        LICENSE
-Author:              Joris Guyonvarch
-Maintainer:          joris@guyonvarch.me
-Category:            Web
-Build-type:          Simple
-Cabal-version:       >=1.10
-
-Library
-  Ghc-options:       -Wall -Werror
-  Hs-source-dirs:    src
-  Default-language:  Haskell2010
-
-  Default-extensions:
-    DeriveGeneric
-    ExistentialQuantification
-    LambdaCase
-    MultiParamTypeClasses
-    OverloadedStrings
-    ScopedTypeVariables
-
-  Build-depends:
-      aeson
-    , base >= 4.11 && < 5
-    , containers
-    , text
-    , time
-    , validation
-
-  Exposed-modules:
-    Common.Model
-    Common.Model.CreateCategoryForm
-    Common.Model.CreateIncomeForm
-    Common.Model.CreatePaymentForm
-    Common.Model.Email
-    Common.Model.Password
-    Common.Model.Payment
-    Common.Model.SignInForm
-    Common.Model.User
-    Common.Msg
-    Common.Util.Text
-    Common.Util.Time
-    Common.Util.Validation
-    Common.Validation.Atomic
-    Common.Validation.Category
-    Common.Validation.Income
-    Common.Validation.Payment
-    Common.Validation.SignIn
-    Common.View.Format
-
-  other-modules:
-    Common.Message.Key
-    Common.Message.Lang
-    Common.Message.Translation
-    Common.Model.Category
-    Common.Model.CategoryPage
-    Common.Model.Currency
-    Common.Model.EditCategoryForm
-    Common.Model.EditIncome
-    Common.Model.EditIncomeForm
-    Common.Model.EditPaymentForm
-    Common.Model.ExceedingPayer
-    Common.Model.Frequency
-    Common.Model.Income
-    Common.Model.IncomeHeader
-    Common.Model.IncomePage
-    Common.Model.Init
-    Common.Model.PaymentHeader
-    Common.Model.PaymentPage
-    Common.Model.Stats
diff --git a/common/src/Common/Message/Key.hs b/common/src/Common/Message/Key.hs
deleted file mode 100644
index f3b0837..0000000
--- a/common/src/Common/Message/Key.hs
+++ /dev/null
@@ -1,150 +0,0 @@
-module Common.Message.Key
-  ( Key(..)
-  ) where
-
-import           Data.Text
-
-data Key =
-
-  App_Title
-
-  | Category_Add
-  | Category_Clone
-  | Category_Color
-  | Category_DeleteConfirm
-  | Category_Edit
-  | Category_Empty
-  | Category_Name
-  | Category_NotDeleted
-  | Category_Title
-  | Category_Used
-
-  | Date_Long Int Text Int
-  | Date_Short Int Int Int
-  | Date_ShortMonthAndYear Int Int
-
-  | Dialog_Confirm
-  | Dialog_Undo
-
-  | Error_CategoryCreate
-  | Error_CategoryDelete
-  | Error_CategoryEdit
-  | Error_IncomeCreate
-  | Error_IncomeDelete
-  | Error_IncomeEdit
-  | Error_PaymentCreate
-  | Error_PaymentDelete
-  | Error_PaymentEdit
-  | Error_SignOut
-
-  | Form_AlreadyExists
-  | Form_NonEmpty
-  | Form_MinChars Int
-  | Form_NonNullNumber
-  | Form_GreaterIntThan Int
-  | Form_InvalidCategory
-  | Form_InvalidColor
-  | Form_InvalidDate
-  | Form_InvalidInt
-  | Form_InvalidString
-  | Form_SmallerIntThan Int
-
-  | HttpError_BadPayload
-  | HttpError_BadUrl
-  | HttpError_NetworkError
-  | HttpError_Timeout
-
-  | Income_AddLong
-  | Income_AddShort
-  | Income_Name
-  | Income_Amount
-  | Income_Clone
-  | Income_CumulativeSince Text
-  | Income_Date
-  | Income_DeleteConfirm
-  | Income_Edit
-  | Income_Empty
-  | Income_MonthlyNet
-  | Income_Title
-
-  | Month_January
-  | Month_February
-  | Month_March
-  | Month_April
-  | Month_May
-  | Month_June
-  | Month_July
-  | Month_August
-  | Month_September
-  | Month_October
-  | Month_November
-  | Month_December
-
-  | PageNotFound_Title
-
-  | Payment_Add
-  | Payment_Balanced
-  | Payment_By Text Text
-  | Payment_Category
-  | Payment_CloneLong
-  | Payment_CloneShort
-  | Payment_Cost
-  | Payment_Date
-  | Payment_Delete
-  | Payment_DeleteConfirm
-  | Payment_EditLong
-  | Payment_EditShort
-  | Payment_Empty
-  | Payment_Frequency
-  | Payment_InvalidFrequency
-  | Payment_Many
-  | Payment_MonthlyFemale
-  | Payment_MonthlyMale
-  | Payment_Name
-  | Payment_NotDeleted
-  | Payment_One
-  | Payment_PunctualFemale
-  | Payment_PunctualMale
-  | Payment_Title
-  | Payment_User
-  | Payment_Worth Text Text
-
-  | Search_Monthly
-  | Search_Name
-  | Search_Punctual
-
-  | Secure_Forbidden
-  | Secure_Unauthorized
-
-  | SignIn_Button
-  | SignIn_DisconnectSuccess
-  | SignIn_InvalidCredentials
-  | SignIn_EmailLabel
-  | SignIn_PasswordLabel
-
-  | Statistics_Title
-  | Statistics_ByMonthsAndMean Text Text
-  | Statistics_TotalPayments
-  | Statistics_TotalIncomes
-
-  | WeeklyReport_Empty
-  | WeeklyReport_IncomesCreated Int
-  | WeeklyReport_IncomesDeleted Int
-  | WeeklyReport_IncomesEdited Int
-  | WeeklyReport_IncomeCreated Int
-  | WeeklyReport_IncomeDeleted Int
-  | WeeklyReport_IncomeEdited Int
-  | WeeklyReport_PayedFor Text Text Text Text
-  | WeeklyReport_PayedForNot Text Text Text Text
-  | WeeklyReport_PayedFrom Text Text Text
-  | WeeklyReport_PayedFromNot Text Text Text
-  | WeeklyReport_PaymentsCreated Int
-  | WeeklyReport_PaymentsDeleted Int
-  | WeeklyReport_PaymentsEdited Int
-  | WeeklyReport_PaymentCreated Int
-  | WeeklyReport_PaymentDeleted Int
-  | WeeklyReport_PaymentEdited Int
-  | WeeklyReport_Title
-
-  | NotFound_Message
-  | NotFound_LinkMessage
diff --git a/common/src/Common/Message/Lang.hs b/common/src/Common/Message/Lang.hs
deleted file mode 100644
index 0a32ede..0000000
--- a/common/src/Common/Message/Lang.hs
+++ /dev/null
@@ -1,7 +0,0 @@
-module Common.Message.Lang
-  ( Lang(..)
-  ) where
-
-data Lang =
-  English
-  | French
diff --git a/common/src/Common/Message/Translation.hs b/common/src/Common/Message/Translation.hs
deleted file mode 100644
index f1de3e1..0000000
--- a/common/src/Common/Message/Translation.hs
+++ /dev/null
@@ -1,655 +0,0 @@
-module Common.Message.Translation
-  ( get
-  ) where
-
-import           Data.Text           (Text)
-import qualified Data.Text           as T
-
-import           Common.Message.Key
-import           Common.Message.Lang (Lang (..))
-
-get :: Lang -> Key -> Text
-get = m
-
-m :: Lang -> Key -> Text
-
-m l App_Title =
-  case l of
-    English -> "Shared Cost"
-    French  -> "Partage des frais"
-
-m l Category_Add =
-  case l of
-    English -> "Add an category"
-    French  -> "Ajouter une catégorie"
-
-m l Category_Clone =
-  case l of
-    English -> "Clone an category"
-    French  -> "Cloner une catégorie"
-
-m l Category_Color =
-  case l of
-    English -> "Color"
-    French  -> "Couleur"
-
-m l Category_DeleteConfirm =
-  case l of
-    English -> "Are you sure to delete this category ?"
-    French  -> "Voulez-vous vraiment supprimer cette catégorie ?"
-
-m l Category_Edit =
-  case l of
-    English -> "Edit an category"
-    French  -> "Modifier une catégorie"
-
-m l Category_Empty =
-  case l of
-    English -> "No category."
-    French  -> "Aucune catégorie."
-
-m l Category_Name =
-  case l of
-    English -> "Name"
-    French  -> "Nom"
-
-m l Category_NotDeleted =
-  case l of
-    English -> "The category could not have been deleted."
-    French  -> "La catégorie n’a pas pu être supprimé."
-
-m l Category_Title =
-  case l of
-    English -> "Categories"
-    French  -> "Catégories"
-
-m l Category_Used =
-  case l of
-    English -> "This category is currently being used"
-    French  -> "Cette catégorie est actuellement utilisée"
-
-m l (Date_Short day month year) =
-  case l of
-    English ->
-      T.intercalate "-" [ padded year 4, padded month 2, padded day 2 ]
-    French ->
-      T.intercalate "/" [ padded day 2, padded month 2, padded year 4 ]
-  where padded num pad =
-          let str = show num
-          in  T.pack $ replicate (pad - length str) '0' ++ str
-
-m l (Date_ShortMonthAndYear month year) =
-  case l of
-    English ->
-      T.intercalate "-" . map (T.pack . show) $ [ year, month ]
-    French ->
-      T.intercalate "/" . map (T.pack . show) $ [ month, year ]
-
-m l (Date_Long day month year) =
-  case l of
-    English ->
-      T.concat [ month, " " , T.pack . show $ day, ", ", T.pack . show $ year ]
-    French ->
-      T.intercalate " " [ T.pack . show $ day, month, T.pack . show $ year ]
-
-m l Dialog_Confirm =
-  case l of
-    English -> "Confirm"
-    French  -> "Confirmer"
-
-m l Dialog_Undo =
-  case l of
-    English -> "Undo"
-    French  -> "Annuler"
-
-m l Error_CategoryCreate =
-  case l of
-    English -> "Error at category creation"
-    French  -> "Erreur lors de la création de la catégorie"
-
-m l Error_CategoryDelete =
-  case l of
-    English -> "Error at category deletion"
-    French  -> "Erreur lors de la suppression de la catégorie"
-
-m l Error_CategoryEdit =
-  case l of
-    English -> "Error at category edition"
-    French  -> "Erreur lors de la modification de la catégorie"
-
-m l Error_IncomeCreate =
-  case l of
-    English -> "Error at income creation"
-    French  -> "Erreur lors de la création du revenu"
-
-m l Error_IncomeDelete =
-  case l of
-    English -> "Error at income deletion"
-    French  -> "Erreur lors de la suppression du revenu"
-
-m l Error_IncomeEdit =
-  case l of
-    English -> "Error at income edition"
-    French  -> "Erreur lors de la modification du revenu"
-
-m l Error_PaymentCreate =
-  case l of
-    English -> "Error at payment creation"
-    French  -> "Erreur lors de la création du paiement"
-
-m l Error_PaymentDelete =
-  case l of
-    English -> "Error at payment deletion"
-    French  -> "Erreur lors de la suppression du paiement"
-
-m l Error_PaymentEdit =
-  case l of
-    English -> "Error at payment edition"
-    French  -> "Erreur lors de la modification du paiement"
-
-m l Error_SignOut =
-  case l of
-    English -> "Error at sign out"
-    French  -> "Erreur lors de la déconnexion"
-
-m l Form_AlreadyExists =
-  case l of
-    English -> "Dupplicate field"
-    French  -> "Doublon"
-
-m l Form_NonEmpty =
-  case l of
-    English -> "Required field"
-    French  -> "Champ requis"
-
-m l (Form_MinChars number) =
-  case l of
-    English -> T.concat [ "This field must contains at least ", T.pack . show $ number, " characters" ]
-    French  -> T.concat [ "Ce champ doit contenir au moins ", T.pack . show $ number, " caractères" ]
-
-m l Form_NonNullNumber =
-  case l of
-    English -> "Number must not be null"
-    French  -> "Le nombre ne doit pas être nul"
-
-m l (Form_GreaterIntThan number) =
-  case l of
-    English -> T.concat [ "Integer smaller than ", T.pack . show $ number, " or equal required" ]
-    French  -> T.concat [ "Entier inférieur ou égal à ", T.pack . show $ number, " requis" ]
-
-m l Form_InvalidCategory =
-  case l of
-    English -> "Invalid category"
-    French  -> "Catégorie invalide"
-
-m l Form_InvalidColor =
-  case l of
-    English -> "Invalid color"
-    French  -> "Couleur invalide"
-
-m l Form_InvalidDate =
-  case l of
-    English -> "Date required"
-    French  -> "Date requise"
-
-m l Form_InvalidInt =
-  case l of
-    English -> "Integer required"
-    French  -> "Entier requis"
-
-m l Form_InvalidString =
-  case l of
-    English -> "String required"
-    French  -> "Chaîne de caractères requise"
-
-m l (Form_SmallerIntThan number) =
-  case l of
-    English -> T.concat [ "Integer bigger than ", T.pack . show $ number, " or equal required" ]
-    French  -> T.concat [ "Entier supérieur ou égal à ", T.pack . show $ number, " requis" ]
-
-m l HttpError_BadPayload =
-  case l of
-    English -> "Bad payload server error"
-    French  -> "Contenu inattendu en provenance du serveur"
-
-m l HttpError_BadUrl =
-  case l of
-    English -> "URL not valid"
-    French  -> "l’URL n’est pas valide"
-
-m l HttpError_NetworkError =
-  case l of
-    English -> "Network can not be reached"
-    French  -> "Le serveur n’est pas accessible"
-
-m l HttpError_Timeout =
-  case l of
-    English -> "Timeout server error"
-    French  -> "Le serveur met trop de temps à répondre"
-
-m l Income_AddLong =
-  case l of
-    English -> "Add an income"
-    French  -> "Ajouter un revenu"
-
-m l Income_AddShort =
-  case l of
-    English -> "Add"
-    French  -> "Ajouter"
-
-m l Income_Name =
-  case l of
-    English -> "Name"
-    French  -> "Nom"
-
-m l Income_Amount =
-  case l of
-    English -> "Income"
-    French  -> "Revenu"
-
-m l Income_Clone =
-  case l of
-    English -> "Clone an income"
-    French  -> "Cloner un revenu"
-
-m l (Income_CumulativeSince since) =
-  case l of
-    English -> T.concat [ "Cumulative incomes since ", since ]
-    French  -> T.concat [ "Revenus nets cumulés depuis le ", since ]
-
-m l Income_Date =
-  case l of
-    English -> "Date"
-    French  -> "Date"
-
-m l Income_DeleteConfirm =
-  case l of
-    English -> "Are you sure to delete this income ?"
-    French  -> "Voulez-vous vraiment supprimer ce revenu ?"
-
-m l Income_Edit =
-  case l of
-    English -> "Edit an income"
-    French  -> "Modifier un revenu"
-
-m l Income_Empty =
-  case l of
-    English -> "No income."
-    French  -> "Aucun revenu."
-
-m l Income_MonthlyNet =
-  case l of
-    English -> "Net monthly incomes"
-    French  -> "Revenus mensuels nets"
-
-m l Income_Title =
-  case l of
-    English -> "Income"
-    French  -> "Revenu"
-
-m l Month_January =
-  case l of
-    English -> "january"
-    French  -> "janvier"
-
-m l Month_February =
-  case l of
-    English -> "february"
-    French  -> "février"
-
-m l Month_March =
-  case l of
-    English -> "march"
-    French  -> "mars"
-
-m l Month_April =
-  case l of
-    English -> "april"
-    French  -> "avril"
-
-m l Month_May =
-  case l of
-    English -> "may"
-    French  -> "mai"
-
-m l Month_June =
-  case l of
-    English -> "june"
-    French  -> "juin"
-
-m l Month_July =
-  case l of
-    English -> "july"
-    French  -> "juillet"
-
-m l Month_August =
-  case l of
-    English -> "august"
-    French  -> "août"
-
-m l Month_September =
-  case l of
-    English -> "september"
-    French  -> "septembre"
-
-m l Month_October =
-  case l of
-    English -> "october"
-    French  -> "octobre"
-
-m l Month_November =
-  case l of
-    English -> "november"
-    French  -> "novembre"
-
-m l Month_December =
-  case l of
-    English -> "december"
-    French  -> "décembre"
-
-m l PageNotFound_Title =
-  case l of
-    English -> "Page not found"
-    French  -> "Page introuvable"
-
-m l Payment_Add =
-  case l of
-    English -> "Add a payment"
-    French  -> "Ajouter un paiement"
-
-m l Payment_Balanced =
-  case l of
-    English -> "Payments are balanced."
-    French  -> "Les paiements sont équilibrés."
-
-m l (Payment_By key value) =
-  case l of
-    English -> T.concat [ key, ": ", value ]
-    French  -> T.concat [ key, " : ", value ]
-
-m l Payment_Category =
-  case l of
-    English -> "Category"
-    French  -> "Catégorie"
-
-m l Payment_CloneLong =
-  case l of
-    English -> "Clone a payment"
-    French  -> "Cloner un paiement"
-
-m l Payment_CloneShort =
-  case l of
-    English -> "Clone"
-    French  -> "Cloner"
-
-m l Payment_Cost =
-  case l of
-    English -> "Cost"
-    French  -> "Coût"
-
-m l Payment_Date =
-  case l of
-    English -> "Date"
-    French  -> "Date"
-
-m l Payment_Delete =
-  case l of
-    English -> "Delete"
-    French  -> "Supprimer"
-
-m l Payment_DeleteConfirm =
-  case l of
-    English -> "Are you sure to delete this payment ?"
-    French  -> "Voulez-vous vraiment supprimer ce paiement ?"
-
-m l Payment_EditLong =
-  case l of
-    English -> "Edit a payment"
-    French  -> "Modifier un paiement"
-
-m l Payment_EditShort =
-  case l of
-    English -> "Edit"
-    French  -> "Modifier"
-
-m l Payment_Empty =
-  case l of
-    English -> "No payment found from your search criteria."
-    French  -> "Aucun paiement ne correspond à vos critères de recherches."
-
-m l Payment_Frequency =
-  case l of
-    English -> "Frequency"
-    French  -> "Fréquence"
-
-m l Payment_InvalidFrequency =
-  case l of
-    English -> "Invalid frequency"
-    French  -> "Fréquence invalide"
-
-m l Payment_Many =
-  case l of
-    English -> "payments"
-    French  -> "paiements"
-
-m l Payment_MonthlyFemale =
-  case l of
-    English -> "Monthly"
-    French  -> "Mensuelle"
-
-m l Payment_MonthlyMale =
-  case l of
-    English -> "Monthly"
-    French  -> "Mensuel"
-
-m l Payment_Name =
-  case l of
-    English -> "Name"
-    French  -> "Nom"
-
-m l Payment_NotDeleted =
-  case l of
-    English -> "The payment could not have been deleted."
-    French  -> "Le paiement n’a pas pu être supprimé."
-
-m l Payment_One =
-  case l of
-    English -> "payment"
-    French  -> "paiement"
-
-m l Payment_PunctualFemale =
-  case l of
-    English -> "Punctual"
-    French  -> "Ponctuelle"
-
-m l Payment_PunctualMale =
-  case l of
-    English -> "Punctual"
-    French  -> "Ponctuel"
-
-m l Payment_Title =
-  case l of
-    English -> "Payments"
-    French  -> "Paiements"
-
-m l Payment_User =
-  case l of
-    English -> "Payer"
-    French  -> "Payeur"
-
-m l (Payment_Worth subject amount) =
-  case l of
-    English -> T.concat [ subject, " worth ", amount ]
-    French  -> T.concat [ subject, " comptabilisant ", amount ]
-
-m l Search_Monthly =
-  case l of
-    English -> "Monthly"
-    French  -> "Mensuel"
-
-m l Search_Name =
-  case l of
-    English -> "Search"
-    French  -> "Recherche"
-
-m l Search_Punctual =
-  case l of
-    English -> "Punctual"
-    French  -> "Ponctuel"
-
-m l Secure_Unauthorized =
-  case l of
-    English -> "You are not authorized to sign in."
-    French  -> "Tu n’es pas autorisé à te connecter."
-
-m l Secure_Forbidden =
-  case l of
-    English -> "You need to be logged in to perform this action"
-    French  -> "Tu dois te connecter pour effectuer cette action"
-
-m l SignIn_Button =
-  case l of
-    English -> "Sign in"
-    French  -> "Connexion"
-
-m l SignIn_DisconnectSuccess =
-  case l of
-    English -> "You have successfully disconnected"
-    French  -> "Vous êtes à présent déconnecté."
-
-m l SignIn_InvalidCredentials =
-  case l of
-    English -> "Your credentials are not valid."
-    French  -> "Vos identifiants de connexion ne sont pas valides."
-
-m l SignIn_EmailLabel =
-  case l of
-    English -> "Email"
-    French  -> "Courriel"
-
-m l SignIn_PasswordLabel =
-  case l of
-    English -> "Password"
-    French  -> "Mot de passe"
-
-m l (Statistics_ByMonthsAndMean paymentMean incomeMean ) =
-  case l of
-    English ->
-      T.concat [ "Payments by category (mean ", paymentMean, ") and income (mean ", incomeMean, ") by month" ]
-    French  ->
-      T.concat [ "Paiements par catégorie (moy. ", paymentMean, ") et revenu (moy. ", incomeMean, ") par mois" ]
-
-m l Statistics_Title =
-  case l of
-    English -> "Statistics"
-    French  -> "Statistiques"
-
-m l Statistics_TotalPayments =
-  case l of
-    English -> "Payment total"
-    French  -> "Total des paiements"
-
-m l Statistics_TotalIncomes =
-  case l of
-    English -> "Income total"
-    French  -> "Total des revenus"
-
-m l WeeklyReport_Empty =
-  case l of
-    English -> "No activity the previous week."
-    French  -> "Pas d’activité la semaine passée."
-
-m l (WeeklyReport_IncomesCreated count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " incomes created:" ]
-    French  -> T.concat [ T.pack . show $ count, " revenus créés :" ]
-
-m l (WeeklyReport_IncomesDeleted count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " incomes deleted:" ]
-    French  -> T.concat [ T.pack . show $ count, " revenus supprimés :" ]
-
-m l (WeeklyReport_IncomesEdited count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " incomes edited:" ]
-    French  -> T.concat [ T.pack . show $ count, " revenus modifiés :" ]
-
-m l (WeeklyReport_IncomeCreated count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " income created:" ]
-    French  -> T.concat [ T.pack . show $ count, " revenu créé :" ]
-
-m l (WeeklyReport_IncomeDeleted count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " income deleted:" ]
-    French  -> T.concat [ T.pack . show $ count, " revenu supprimé :" ]
-
-m l (WeeklyReport_IncomeEdited count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " income edited:" ]
-    French  -> T.concat [ T.pack . show $ count, " revenu modifié :" ]
-
-m l (WeeklyReport_PayedFor name amount for at) =
-  case l of
-    English -> T.concat [ name, " payed ", amount, " for “", for, "” at ", at ]
-    French  -> T.concat [ name, " a payé ", amount, " de « ", for, " » le ", at ]
-
-m l (WeeklyReport_PayedForNot name amount for at) =
-  case l of
-    English -> T.concat [ name, " didn’t pay ", amount, " for “", for, "” at ", at ]
-    French  -> T.concat [ name, " n’a pas payé ", amount, " de « ", for, " » le ", at ]
-
-m l (WeeklyReport_PayedFrom name amount for) =
-  case l of
-    English -> T.concat [ name, " is payed ", amount, " of net monthly income from ", for ]
-    French  -> T.concat [ name, " est payé ", amount, " net par mois à partir du ", for ]
-
-m l (WeeklyReport_PayedFromNot name amount for) =
-  case l of
-    English -> T.concat [ name, " isn’t payed ", amount, " of net monthly income from ", for ]
-    French  -> T.concat [ name, " n’est pas payé ", amount, " net par mois à partir du ", for ]
-
-m l (WeeklyReport_PaymentsCreated count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " payments created:" ]
-    French  -> T.concat [ T.pack . show $ count, " paiements créés :" ]
-
-m l (WeeklyReport_PaymentsDeleted count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " payments deleted:" ]
-    French  -> T.concat [ T.pack . show $ count, " paiements supprimés :" ]
-
-m l (WeeklyReport_PaymentsEdited count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " payments edited:" ]
-    French  -> T.concat [ T.pack . show $ count, " paiements modifiés :" ]
-
-m l (WeeklyReport_PaymentCreated count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " payment created:" ]
-    French  -> T.concat [ T.pack . show $ count, " paiement créé :" ]
-
-m l (WeeklyReport_PaymentDeleted count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " payment deleted:" ]
-    French  -> T.concat [ T.pack . show $ count, " paiement supprimé :" ]
-
-m l (WeeklyReport_PaymentEdited count) =
-  case l of
-    English -> T.concat [ T.pack . show $ count, " payment edited:" ]
-    French  -> T.concat [ T.pack . show $ count, " paiement modifié :" ]
-
-m l WeeklyReport_Title =
-  case l of
-    English -> "Weekly report"
-    French  -> "Rapport hebdomadaire"
-
-m l NotFound_Message =
-  case l of
-    English -> "There is nothing here!"
-    French  -> "Il n’y a rien à voir ici."
-
-m l NotFound_LinkMessage =
-  case l of
-    English -> "Go back to the home page."
-    French  -> "Retour à l’accueil."
diff --git a/common/src/Common/Model.hs b/common/src/Common/Model.hs
deleted file mode 100644
index 979d876..0000000
--- a/common/src/Common/Model.hs
+++ /dev/null
@@ -1,26 +0,0 @@
-module Common.Model (module X) where
-
-import           Common.Model.Category           as X
-import           Common.Model.CategoryPage       as X
-import           Common.Model.CreateCategoryForm as X
-import           Common.Model.CreateIncomeForm   as X
-import           Common.Model.CreatePaymentForm  as X
-import           Common.Model.Currency           as X
-import           Common.Model.EditCategoryForm   as X
-import           Common.Model.EditIncome         as X
-import           Common.Model.EditIncomeForm     as X
-import           Common.Model.EditPaymentForm    as X
-import           Common.Model.Email              as X
-import           Common.Model.ExceedingPayer     as X
-import           Common.Model.Frequency          as X
-import           Common.Model.Income             as X
-import           Common.Model.IncomeHeader       as X
-import           Common.Model.IncomePage         as X
-import           Common.Model.Init               as X
-import           Common.Model.Password           as X
-import           Common.Model.Payment            as X
-import           Common.Model.PaymentHeader      as X
-import           Common.Model.PaymentPage        as X
-import           Common.Model.SignInForm         as X
-import           Common.Model.Stats              as X
-import           Common.Model.User               as X
diff --git a/common/src/Common/Model/Category.hs b/common/src/Common/Model/Category.hs
deleted file mode 100644
index cc3f795..0000000
--- a/common/src/Common/Model/Category.hs
+++ /dev/null
@@ -1,24 +0,0 @@
-module Common.Model.Category
-  ( CategoryId
-  , Category(..)
-  ) where
-
-import           Data.Aeson   (FromJSON, ToJSON)
-import           Data.Int     (Int64)
-import           Data.Text    (Text)
-import           Data.Time    (UTCTime)
-import           GHC.Generics (Generic)
-
-type CategoryId = Int64
-
-data Category = Category
-  { _category_id        :: CategoryId
-  , _category_name      :: Text
-  , _category_color     :: Text
-  , _category_createdAt :: UTCTime
-  , _category_editedAt  :: Maybe UTCTime
-  , _category_deletedAt :: Maybe UTCTime
-  } deriving (Eq, Show, Generic)
-
-instance FromJSON Category
-instance ToJSON Category
diff --git a/common/src/Common/Model/CategoryPage.hs b/common/src/Common/Model/CategoryPage.hs
deleted file mode 100644
index e20f49f..0000000
--- a/common/src/Common/Model/CategoryPage.hs
+++ /dev/null
@@ -1,18 +0,0 @@
-module Common.Model.CategoryPage
-  ( CategoryPage(..)
-  ) where
-
-import           Data.Aeson            (FromJSON, ToJSON)
-import           GHC.Generics          (Generic)
-
-import           Common.Model.Category (Category, CategoryId)
-
-data CategoryPage = CategoryPage
-  { _categoryPage_page           :: Int
-  , _categoryPage_categories     :: [Category]
-  , _categoryPage_usedCategories :: [CategoryId]
-  , _categoryPage_totalCount     :: Int
-  } deriving (Eq, Show, Generic)
-
-instance FromJSON CategoryPage
-instance ToJSON CategoryPage
diff --git a/common/src/Common/Model/CreateCategoryForm.hs b/common/src/Common/Model/CreateCategoryForm.hs
deleted file mode 100644
index 4668ef4..0000000
--- a/common/src/Common/Model/CreateCategoryForm.hs
+++ /dev/null
@@ -1,15 +0,0 @@
-module Common.Model.CreateCategoryForm
-  ( CreateCategoryForm(..)
-  ) where
-
-import           Data.Aeson   (FromJSON, ToJSON)
-import           Data.Text    (Text)
-import           GHC.Generics (Generic)
-
-data CreateCategoryForm = CreateCategoryForm
-  { _createCategoryForm_name  :: Text
-  , _createCategoryForm_color :: Text
-  } deriving (Show, Generic)
-
-instance FromJSON CreateCategoryForm
-instance ToJSON CreateCategoryForm
diff --git a/common/src/Common/Model/CreateIncomeForm.hs b/common/src/Common/Model/CreateIncomeForm.hs
deleted file mode 100644
index e83bf0a..0000000
--- a/common/src/Common/Model/CreateIncomeForm.hs
+++ /dev/null
@@ -1,15 +0,0 @@
-module Common.Model.CreateIncomeForm
-  ( CreateIncomeForm(..)
-  ) where
-
-import           Data.Aeson   (FromJSON, ToJSON)
-import           Data.Text    (Text)
-import           GHC.Generics (Generic)
-
-data CreateIncomeForm = CreateIncomeForm
-  { _createIncomeForm_amount :: Text
-  , _createIncomeForm_date   :: Text
-  } deriving (Show, Generic)
-
-instance FromJSON CreateIncomeForm
-instance ToJSON CreateIncomeForm
diff --git a/common/src/Common/Model/CreatePaymentForm.hs b/common/src/Common/Model/CreatePaymentForm.hs
deleted file mode 100644
index 60c5423..0000000
--- a/common/src/Common/Model/CreatePaymentForm.hs
+++ /dev/null
@@ -1,21 +0,0 @@
-module Common.Model.CreatePaymentForm
-  ( CreatePaymentForm(..)
-  ) where
-
-import           Data.Aeson             (FromJSON, ToJSON)
-import           Data.Text              (Text)
-import           GHC.Generics           (Generic)
-
-import           Common.Model.Category  (CategoryId)
-import           Common.Model.Frequency (Frequency)
-
-data CreatePaymentForm = CreatePaymentForm
-  { _createPaymentForm_name      :: Text
-  , _createPaymentForm_cost      :: Text
-  , _createPaymentForm_date      :: Text
-  , _createPaymentForm_category  :: CategoryId
-  , _createPaymentForm_frequency :: Frequency
-  } deriving (Show, Generic)
-
-instance FromJSON CreatePaymentForm
-instance ToJSON CreatePaymentForm
diff --git a/common/src/Common/Model/Currency.hs b/common/src/Common/Model/Currency.hs
deleted file mode 100644
index 175aeba..0000000
--- a/common/src/Common/Model/Currency.hs
+++ /dev/null
@@ -1,12 +0,0 @@
-module Common.Model.Currency
-  ( Currency(..)
-  ) where
-
-import           Data.Aeson   (FromJSON, ToJSON)
-import           Data.Text    (Text)
-import           GHC.Generics (Generic)
-
-newtype Currency = Currency Text deriving (Show, Generic)
-
-instance FromJSON Currency
-instance ToJSON Currency
diff --git a/common/src/Common/Model/EditCategoryForm.hs b/common/src/Common/Model/EditCategoryForm.hs
deleted file mode 100644
index a2ceca0..0000000
--- a/common/src/Common/Model/EditCategoryForm.hs
+++ /dev/null
@@ -1,18 +0,0 @@
-module Common.Model.EditCategoryForm
-  ( EditCategoryForm(..)
-  ) where
-
-import           Data.Aeson            (FromJSON, ToJSON)
-import           Data.Text             (Text)
-import           GHC.Generics          (Generic)
-
-import           Common.Model.Category (CategoryId)
-
-data EditCategoryForm = EditCategoryForm
-  { _editCategoryForm_id    :: CategoryId
-  , _editCategoryForm_name  :: Text
-  , _editCategoryForm_color :: Text
-  } deriving (Show, Generic)
-
-instance FromJSON EditCategoryForm
-instance ToJSON EditCategoryForm
diff --git a/common/src/Common/Model/EditIncome.hs b/common/src/Common/Model/EditIncome.hs
deleted file mode 100644
index 0e65f12..0000000
--- a/common/src/Common/Model/EditIncome.hs
+++ /dev/null
@@ -1,17 +0,0 @@
-module Common.Model.EditIncome
-  ( EditIncome(..)
-  ) where
-
-import           Data.Aeson          (FromJSON)
-import           Data.Time.Calendar  (Day)
-import           GHC.Generics        (Generic)
-
-import           Common.Model.Income (IncomeId)
-
-data EditIncome = EditIncome
-  { _editIncome_id     :: IncomeId
-  , _editIncome_date   :: Day
-  , _editIncome_amount :: Int
-  } deriving (Show, Generic)
-
-instance FromJSON EditIncome
diff --git a/common/src/Common/Model/EditIncomeForm.hs b/common/src/Common/Model/EditIncomeForm.hs
deleted file mode 100644
index ff975fc..0000000
--- a/common/src/Common/Model/EditIncomeForm.hs
+++ /dev/null
@@ -1,18 +0,0 @@
-module Common.Model.EditIncomeForm
-  ( EditIncomeForm(..)
-  ) where
-
-import           Data.Aeson          (FromJSON, ToJSON)
-import           Data.Text           (Text)
-import           GHC.Generics        (Generic)
-
-import           Common.Model.Income (IncomeId)
-
-data EditIncomeForm = EditIncomeForm
-  { _editIncomeForm_id     :: IncomeId
-  , _editIncomeForm_amount :: Text
-  , _editIncomeForm_date   :: Text
-  } deriving (Show, Generic)
-
-instance FromJSON EditIncomeForm
-instance ToJSON EditIncomeForm
diff --git a/common/src/Common/Model/EditPaymentForm.hs b/common/src/Common/Model/EditPaymentForm.hs
deleted file mode 100644
index 168c9ff..0000000
--- a/common/src/Common/Model/EditPaymentForm.hs
+++ /dev/null
@@ -1,23 +0,0 @@
-module Common.Model.EditPaymentForm
-  ( EditPaymentForm(..)
-  ) where
-
-import           Data.Aeson             (FromJSON, ToJSON)
-import           Data.Text              (Text)
-import           GHC.Generics           (Generic)
-
-import           Common.Model.Category  (CategoryId)
-import           Common.Model.Frequency (Frequency)
-import           Common.Model.Payment   (PaymentId)
-
-data EditPaymentForm = EditPaymentForm
-  { _editPaymentForm_id        :: PaymentId
-  , _editPaymentForm_name      :: Text
-  , _editPaymentForm_cost      :: Text
-  , _editPaymentForm_date      :: Text
-  , _editPaymentForm_category  :: CategoryId
-  , _editPaymentForm_frequency :: Frequency
-  } deriving (Show, Generic)
-
-instance FromJSON EditPaymentForm
-instance ToJSON EditPaymentForm
diff --git a/common/src/Common/Model/Email.hs b/common/src/Common/Model/Email.hs
deleted file mode 100644
index e938f83..0000000
--- a/common/src/Common/Model/Email.hs
+++ /dev/null
@@ -1,12 +0,0 @@
-module Common.Model.Email
-  ( Email(..)
-  ) where
-
-import           Data.Aeson   (FromJSON, ToJSON)
-import           Data.Text    (Text)
-import           GHC.Generics (Generic)
-
-newtype Email = Email Text deriving (Show, Generic)
-
-instance FromJSON Email
-instance ToJSON Email
diff --git a/common/src/Common/Model/ExceedingPayer.hs b/common/src/Common/Model/ExceedingPayer.hs
deleted file mode 100644
index b7d3efb..0000000
--- a/common/src/Common/Model/ExceedingPayer.hs
+++ /dev/null
@@ -1,16 +0,0 @@
-module Common.Model.ExceedingPayer
-  ( ExceedingPayer(..)
-  ) where
-
-import           Data.Aeson        (FromJSON, ToJSON)
-import           GHC.Generics      (Generic)
-
-import           Common.Model.User (UserId)
-
-data ExceedingPayer = ExceedingPayer
-  { _exceedingPayer_userId :: UserId
-  , _exceedingPayer_amount :: Int
-  } deriving (Eq, Show, Generic)
-
-instance FromJSON ExceedingPayer
-instance ToJSON ExceedingPayer
diff --git a/common/src/Common/Model/Frequency.hs b/common/src/Common/Model/Frequency.hs
deleted file mode 100644
index 48e75ea..0000000
--- a/common/src/Common/Model/Frequency.hs
+++ /dev/null
@@ -1,14 +0,0 @@
-module Common.Model.Frequency
-  ( Frequency(..)
-  ) where
-
-import           Data.Aeson   (FromJSON, ToJSON)
-import           GHC.Generics (Generic)
-
-data Frequency =
-  Punctual
-  | Monthly
-  deriving (Eq, Read, Show, Generic, Ord)
-
-instance FromJSON Frequency
-instance ToJSON Frequency
diff --git a/common/src/Common/Model/Income.hs b/common/src/Common/Model/Income.hs
deleted file mode 100644
index 57d07f1..0000000
--- a/common/src/Common/Model/Income.hs
+++ /dev/null
@@ -1,27 +0,0 @@
-module Common.Model.Income
-  ( IncomeId
-  , Income(..)
-  ) where
-
-import           Data.Aeson         (FromJSON, ToJSON)
-import           Data.Int           (Int64)
-import           Data.Time          (UTCTime)
-import           Data.Time.Calendar (Day)
-import           GHC.Generics       (Generic)
-
-import           Common.Model.User  (UserId)
-
-type IncomeId = Int64
-
-data Income = Income
-  { _income_id        :: IncomeId
-  , _income_userId    :: UserId
-  , _income_date      :: Day
-  , _income_amount    :: Int
-  , _income_createdAt :: UTCTime
-  , _income_editedAt  :: Maybe UTCTime
-  , _income_deletedAt :: Maybe UTCTime
-  } deriving (Eq, Show, Generic)
-
-instance FromJSON Income
-instance ToJSON Income
diff --git a/common/src/Common/Model/IncomeHeader.hs b/common/src/Common/Model/IncomeHeader.hs
deleted file mode 100644
index 7e712e8..0000000
--- a/common/src/Common/Model/IncomeHeader.hs
+++ /dev/null
@@ -1,18 +0,0 @@
-module Common.Model.IncomeHeader
-  ( IncomeHeader(..)
-  ) where
-
-import           Data.Aeson         (FromJSON, ToJSON)
-import           Data.Map           (Map)
-import           Data.Time.Calendar (Day)
-import           GHC.Generics       (Generic)
-
-import           Common.Model.User  (UserId)
-
-data IncomeHeader = IncomeHeader
-  { _incomeHeader_since  :: Maybe Day
-  , _incomeHeader_byUser :: Map UserId Int
-  } deriving (Eq, Show, Generic)
-
-instance FromJSON IncomeHeader
-instance ToJSON IncomeHeader
diff --git a/common/src/Common/Model/IncomePage.hs b/common/src/Common/Model/IncomePage.hs
deleted file mode 100644
index 977b0ea..0000000
--- a/common/src/Common/Model/IncomePage.hs
+++ /dev/null
@@ -1,19 +0,0 @@
-module Common.Model.IncomePage
-  ( IncomePage(..)
-  ) where
-
-import           Data.Aeson                (FromJSON, ToJSON)
-import           GHC.Generics              (Generic)
-
-import           Common.Model.Income       (Income)
-import           Common.Model.IncomeHeader (IncomeHeader)
-
-data IncomePage = IncomePage
-  { _incomePage_page       :: Int
-  , _incomePage_header     :: IncomeHeader
-  , _incomePage_incomes    :: [Income]
-  , _incomePage_totalCount :: Int
-  } deriving (Eq, Show, Generic)
-
-instance FromJSON IncomePage
-instance ToJSON IncomePage
diff --git a/common/src/Common/Model/Init.hs b/common/src/Common/Model/Init.hs
deleted file mode 100644
index 5ef1535..0000000
--- a/common/src/Common/Model/Init.hs
+++ /dev/null
@@ -1,18 +0,0 @@
-module Common.Model.Init
-  ( Init(..)
-  ) where
-
-import           Data.Aeson            (FromJSON, ToJSON)
-import           GHC.Generics          (Generic)
-
-import           Common.Model.Currency (Currency)
-import           Common.Model.User     (User, UserId)
-
-data Init = Init
-  { _init_users       :: [User]
-  , _init_currentUser :: UserId
-  , _init_currency    :: Currency
-  } deriving (Show, Generic)
-
-instance FromJSON Init
-instance ToJSON Init
diff --git a/common/src/Common/Model/Password.hs b/common/src/Common/Model/Password.hs
deleted file mode 100644
index 1b51a47..0000000
--- a/common/src/Common/Model/Password.hs
+++ /dev/null
@@ -1,12 +0,0 @@
-module Common.Model.Password
-  ( Password(..)
-  ) where
-
-import           Data.Aeson   (FromJSON, ToJSON)
-import           Data.Text    (Text)
-import           GHC.Generics (Generic)
-
-newtype Password = Password Text deriving (Show, Generic)
-
-instance FromJSON Password
-instance ToJSON Password
diff --git a/common/src/Common/Model/Payment.hs b/common/src/Common/Model/Payment.hs
deleted file mode 100644
index 733a145..0000000
--- a/common/src/Common/Model/Payment.hs
+++ /dev/null
@@ -1,33 +0,0 @@
-module Common.Model.Payment
-  ( PaymentId
-  , Payment(..)
-  ) where
-
-import           Data.Aeson             (FromJSON, ToJSON)
-import           Data.Int               (Int64)
-import           Data.Text              (Text)
-import           Data.Time              (UTCTime)
-import           Data.Time.Calendar     (Day)
-import           GHC.Generics           (Generic)
-
-import           Common.Model.Category  (CategoryId)
-import           Common.Model.Frequency
-import           Common.Model.User      (UserId)
-
-type PaymentId = Int64
-
-data Payment = Payment
-  { _payment_id        :: PaymentId
-  , _payment_user      :: UserId
-  , _payment_name      :: Text
-  , _payment_cost      :: Int
-  , _payment_date      :: Day
-  , _payment_category  :: CategoryId
-  , _payment_frequency :: Frequency
-  , _payment_createdAt :: UTCTime
-  , _payment_editedAt  :: Maybe UTCTime
-  , _payment_deletedAt :: Maybe UTCTime
-  } deriving (Eq, Show, Generic)
-
-instance FromJSON Payment
-instance ToJSON Payment
diff --git a/common/src/Common/Model/PaymentHeader.hs b/common/src/Common/Model/PaymentHeader.hs
deleted file mode 100644
index 35f5e1a..0000000
--- a/common/src/Common/Model/PaymentHeader.hs
+++ /dev/null
@@ -1,18 +0,0 @@
-module Common.Model.PaymentHeader
-  ( PaymentHeader(..)
-  ) where
-
-import           Data.Aeson                  (FromJSON, ToJSON)
-import           Data.Map                    (Map)
-import           GHC.Generics                (Generic)
-
-import           Common.Model.ExceedingPayer (ExceedingPayer)
-import           Common.Model.User           (UserId)
-
-data PaymentHeader = PaymentHeader
-  { _paymentHeader_exceedingPayers :: [ExceedingPayer]
-  , _paymentHeader_repartition     :: Map UserId Int
-  } deriving (Eq, Show, Generic)
-
-instance FromJSON PaymentHeader
-instance ToJSON PaymentHeader
diff --git a/common/src/Common/Model/PaymentPage.hs b/common/src/Common/Model/PaymentPage.hs
deleted file mode 100644
index 88d9715..0000000
--- a/common/src/Common/Model/PaymentPage.hs
+++ /dev/null
@@ -1,21 +0,0 @@
-module Common.Model.PaymentPage
-  ( PaymentPage(..)
-  ) where
-
-import           Data.Aeson                 (FromJSON, ToJSON)
-import           GHC.Generics               (Generic)
-
-import           Common.Model.Frequency     (Frequency)
-import           Common.Model.Payment       (Payment)
-import           Common.Model.PaymentHeader (PaymentHeader)
-
-data PaymentPage = PaymentPage
-  { _paymentPage_page       :: Int
-  , _paymentPage_frequency  :: Frequency
-  , _paymentPage_header     :: PaymentHeader
-  , _paymentPage_payments   :: [Payment]
-  , _paymentPage_totalCount :: Int
-  } deriving (Eq, Show, Generic)
-
-instance FromJSON PaymentPage
-instance ToJSON PaymentPage
diff --git a/common/src/Common/Model/SignInForm.hs b/common/src/Common/Model/SignInForm.hs
deleted file mode 100644
index 7a25935..0000000
--- a/common/src/Common/Model/SignInForm.hs
+++ /dev/null
@@ -1,15 +0,0 @@
-module Common.Model.SignInForm
-  ( SignInForm(..)
-  ) where
-
-import           Data.Aeson   (FromJSON, ToJSON)
-import           Data.Text    (Text)
-import           GHC.Generics (Generic)
-
-data SignInForm = SignInForm
-  { _signInForm_email    :: Text
-  , _signInForm_password :: Text
-  } deriving (Show, Generic)
-
-instance FromJSON SignInForm
-instance ToJSON SignInForm
diff --git a/common/src/Common/Model/Stats.hs b/common/src/Common/Model/Stats.hs
deleted file mode 100644
index 86e6ab9..0000000
--- a/common/src/Common/Model/Stats.hs
+++ /dev/null
@@ -1,23 +0,0 @@
-module Common.Model.Stats
-  ( Stats
-  , MonthStats(..)
-  ) where
-
-import           Data.Aeson            (FromJSON, ToJSON)
-import           Data.Map              (Map)
-import           Data.Time.Calendar    (Day)
-import           GHC.Generics          (Generic)
-
-import           Common.Model.Category (CategoryId)
-import           Common.Model.User     (UserId)
-
-type Stats = [MonthStats]
-
-data MonthStats = MonthStats
-  { _monthStats_start              :: Day
-  , _monthStats_paymentsByCategory :: Map CategoryId Int
-  , _monthStats_incomeByUser       :: Map UserId Int
-  } deriving (Eq, Show, Generic)
-
-instance FromJSON MonthStats
-instance ToJSON MonthStats
diff --git a/common/src/Common/Model/User.hs b/common/src/Common/Model/User.hs
deleted file mode 100644
index a30d104..0000000
--- a/common/src/Common/Model/User.hs
+++ /dev/null
@@ -1,27 +0,0 @@
-module Common.Model.User
-  ( UserId
-  , User(..)
-  , findUser
-  ) where
-
-import           Data.Aeson   (FromJSON, ToJSON)
-import           Data.Int     (Int64)
-import qualified Data.List    as L
-import           Data.Text    (Text)
-import           Data.Time    (UTCTime)
-import           GHC.Generics (Generic)
-
-type UserId = Int64
-
-data User = User
-  { _user_id       :: UserId
-  , _user_creation :: UTCTime
-  , _user_email    :: Text
-  , _user_name     :: Text
-  } deriving (Show, Generic)
-
-instance FromJSON User
-instance ToJSON User
-
-findUser :: UserId -> [User] -> Maybe User
-findUser userId users = L.find ((== userId) . _user_id) users
diff --git a/common/src/Common/Msg.hs b/common/src/Common/Msg.hs
deleted file mode 100644
index 9e4cfe2..0000000
--- a/common/src/Common/Msg.hs
+++ /dev/null
@@ -1,13 +0,0 @@
-module Common.Msg
-  ( get
-  , Key(..)
-  ) where
-
-import           Data.Text                  (Text)
-
-import           Common.Message.Key         (Key (..))
-import           Common.Message.Lang        (Lang (..))
-import qualified Common.Message.Translation as Translation
-
-get :: Key -> Text
-get = Translation.get French
diff --git a/common/src/Common/Util/Text.hs b/common/src/Common/Util/Text.hs
deleted file mode 100644
index 0f9c187..0000000
--- a/common/src/Common/Util/Text.hs
+++ /dev/null
@@ -1,49 +0,0 @@
-module Common.Util.Text
-  ( search
-  , formatSearch
-  , unaccent
-  ) where
-
-import           Data.Text (Text)
-import qualified Data.Text as T
-
-search :: Text -> Text -> Bool
-search s t = (formatSearch s) `T.isInfixOf` (formatSearch t)
-
-formatSearch :: Text -> Text
-formatSearch = T.toLower . unaccent
-
-unaccent :: Text -> Text
-unaccent = T.map unaccentChar
-
-unaccentChar :: Char -> Char
-unaccentChar c = case c of
-  'à' -> 'a'
-  'á' -> 'a'
-  'â' -> 'a'
-  'ã' -> 'a'
-  'ä' -> 'a'
-  'ç' -> 'c'
-  'è' -> 'e'
-  'é' -> 'e'
-  'ê' -> 'e'
-  'ë' -> 'e'
-  'ì' -> 'i'
-  'í' -> 'i'
-  'î' -> 'i'
-  'ï' -> 'i'
-  'ñ' -> 'n'
-  'ò' -> 'o'
-  'ó' -> 'o'
-  'ô' -> 'o'
-  'õ' -> 'o'
-  'ö' -> 'o'
-  'š' -> 's'
-  'ù' -> 'u'
-  'ú' -> 'u'
-  'û' -> 'u'
-  'ü' -> 'u'
-  'ý' -> 'y'
-  'ÿ' -> 'y'
-  'ž' -> 'z'
-  _   -> c
diff --git a/common/src/Common/Util/Time.hs b/common/src/Common/Util/Time.hs
deleted file mode 100644
index 6240720..0000000
--- a/common/src/Common/Util/Time.hs
+++ /dev/null
@@ -1,26 +0,0 @@
-module Common.Util.Time
-  ( timeToDay
-  , parseDay
-  ) where
-
-import           Data.Text           (Text)
-import qualified Data.Text           as T
-import           Data.Time           (UTCTime)
-import qualified Data.Time           as Time
-import           Data.Time.Calendar  (Day)
-import           Data.Time.LocalTime
-import qualified Text.Read           as T
-
-timeToDay :: UTCTime -> IO Day
-timeToDay time = localDay . (flip utcToLocalTime time) <$> getTimeZone time
-
-parseDay :: Text -> Maybe Day
-parseDay str = do
-  (y, m, d) <-
-    case T.splitOn "-" str of
-      [y, m, d] -> Just (y, m, d)
-      _         -> Nothing
-  d' <- T.readMaybe . T.unpack $ d
-  m' <- T.readMaybe . T.unpack $ m
-  y' <- T.readMaybe . T.unpack $ y
-  return $ Time.fromGregorian y' m' d'
diff --git a/common/src/Common/Util/Validation.hs b/common/src/Common/Util/Validation.hs
deleted file mode 100644
index f195d95..0000000
--- a/common/src/Common/Util/Validation.hs
+++ /dev/null
@@ -1,13 +0,0 @@
-module Common.Util.Validation
-  ( isSuccess
-  , isFailure
-  ) where
-
-import           Data.Validation (Validation (Failure, Success))
-
-isSuccess :: forall a b. Validation a b -> Bool
-isSuccess (Failure _) = False
-isSuccess (Success _) = True
-
-isFailure :: forall a b. Validation a b -> Bool
-isFailure = not . isSuccess
diff --git a/common/src/Common/Validation/Atomic.hs b/common/src/Common/Validation/Atomic.hs
deleted file mode 100644
index 9c21e14..0000000
--- a/common/src/Common/Validation/Atomic.hs
+++ /dev/null
@@ -1,61 +0,0 @@
-module Common.Validation.Atomic
-  ( color
-  , day
-  , minLength
-  , nonEmpty
-  , nonNullNumber
-  , number
-  , password
-  ) where
-
-import qualified Data.Char          as Char
-import           Data.Text          (Text)
-import qualified Data.Text          as T
-import           Data.Time.Calendar (Day)
-import           Data.Validation    (Validation)
-import qualified Data.Validation    as V
-import qualified Text.Read          as T
-
-import qualified Common.Msg         as Msg
-import qualified Common.Util.Time   as Time
-
-minLength :: Int -> Text -> Validation Text Text
-minLength l =
-  V.validate
-    (Msg.get (Msg.Form_MinChars l))
-    (\t -> if T.length t >= l then Just t else Nothing)
-
-nonEmpty :: Text -> Validation Text Text
-nonEmpty =
-  V.validate
-    (Msg.get Msg.Form_NonEmpty)
-    (\t -> if (not . T.null $ t) then Just t else Nothing)
-
-number :: Text -> Validation Text Int
-number input =
-  case (T.readMaybe . T.unpack $ input) of
-    Just n -> V.Success n
-    _      -> V.Failure (Msg.get Msg.Form_InvalidInt)
-
-nonNullNumber :: Int -> Validation Text Int
-nonNullNumber =
-  V.validate
-    (Msg.get Msg.Form_NonNullNumber)
-    (\n -> if n /= 0 then Just n else Nothing)
-
-day :: Text ->  Validation Text Day
-day str =
-  case Time.parseDay str of
-    Just d  -> V.Success d
-    Nothing -> V.Failure $ Msg.get Msg.Form_InvalidDate
-
-color :: Text -> Validation Text Text
-color str =
-  if T.take 1 str == "#" && T.all Char.isHexDigit (T.drop 1 str) then
-    V.Success str
-
-  else
-    V.Failure (Msg.get Msg.Form_InvalidColor)
-
-password :: Text -> Validation Text Text
-password = minLength 8
diff --git a/common/src/Common/Validation/Category.hs b/common/src/Common/Validation/Category.hs
deleted file mode 100644
index f9e6ab4..0000000
--- a/common/src/Common/Validation/Category.hs
+++ /dev/null
@@ -1,15 +0,0 @@
-module Common.Validation.Category
-  ( name
-  , color
-  ) where
-
-import           Data.Text                (Text)
-import           Data.Validation          (Validation)
-
-import qualified Common.Validation.Atomic as Atomic
-
-name :: Text -> Validation Text Text
-name = Atomic.nonEmpty
-
-color :: Text -> Validation Text Text
-color = Atomic.color
diff --git a/common/src/Common/Validation/Income.hs b/common/src/Common/Validation/Income.hs
deleted file mode 100644
index 7a58bab..0000000
--- a/common/src/Common/Validation/Income.hs
+++ /dev/null
@@ -1,17 +0,0 @@
-module Common.Validation.Income
-  ( amount
-  , date
-  ) where
-
-import           Data.Text                (Text)
-import           Data.Time.Calendar       (Day)
-import           Data.Validation          (Validation)
-import qualified Data.Validation          as V
-
-import qualified Common.Validation.Atomic as Atomic
-
-amount :: Text -> Validation Text Int
-amount input = V.bindValidation (Atomic.number input) Atomic.nonNullNumber
-
-date :: Text -> Validation Text Day
-date = Atomic.day
diff --git a/common/src/Common/Validation/Payment.hs b/common/src/Common/Validation/Payment.hs
deleted file mode 100644
index e3c447a..0000000
--- a/common/src/Common/Validation/Payment.hs
+++ /dev/null
@@ -1,31 +0,0 @@
-module Common.Validation.Payment
-  ( name
-  , cost
-  , date
-  , category
-  ) where
-
-import           Data.Text                (Text)
-import           Data.Time.Calendar       (Day)
-import           Data.Validation          (Validation)
-import qualified Data.Validation          as V
-
-import           Common.Model             (CategoryId)
-import qualified Common.Msg               as Msg
-import qualified Common.Validation.Atomic as Atomic
-
-name :: Text -> Validation Text Text
-name = Atomic.nonEmpty
-
-cost :: Text -> Validation Text Int
-cost input = V.bindValidation (Atomic.number input) Atomic.nonNullNumber
-
-date :: Text -> Validation Text Day
-date = Atomic.day
-
-category :: [CategoryId] -> CategoryId -> Validation Text CategoryId
-category cs c =
-  if elem c cs then
-    V.Success c
-  else
-    V.Failure $ Msg.get Msg.Form_InvalidCategory
diff --git a/common/src/Common/Validation/SignIn.hs b/common/src/Common/Validation/SignIn.hs
deleted file mode 100644
index ac9cc37..0000000
--- a/common/src/Common/Validation/SignIn.hs
+++ /dev/null
@@ -1,17 +0,0 @@
-module Common.Validation.SignIn
-  ( email
-  , password
-  ) where
-
-import           Data.Text                (Text)
-import           Data.Validation          (Validation)
-
-import           Common.Model.Email       (Email (..))
-import           Common.Model.Password    (Password (..))
-import qualified Common.Validation.Atomic as Atomic
-
-email :: Text -> Validation Text Email
-email = fmap Email . Atomic.minLength 5
-
-password :: Text -> Validation Text Password
-password = fmap Password . Atomic.minLength 8
diff --git a/common/src/Common/View/Format.hs b/common/src/Common/View/Format.hs
deleted file mode 100644
index 5d879fa..0000000
--- a/common/src/Common/View/Format.hs
+++ /dev/null
@@ -1,78 +0,0 @@
-module Common.View.Format
-  ( shortDay
-  , longDay
-  , price
-  , number
-  , monthAndYear
-  ) where
-
-import qualified Data.List          as L
-import qualified Data.Maybe         as Maybe
-import           Data.Text          (Text)
-import qualified Data.Text          as T
-import           Data.Time.Calendar (Day)
-import qualified Data.Time.Calendar as Calendar
-
-import           Common.Model       (Currency (..))
-import           Common.Msg         (Key)
-import qualified Common.Msg         as Msg
-
-shortDay :: Day -> Text
-shortDay date =
-  Msg.get $ Msg.Date_Short
-    day
-    month
-    (fromIntegral year)
-  where (year, month, day) = Calendar.toGregorian date
-
-longDay :: Day -> Text
-longDay date =
-  Msg.get $ Msg.Date_Long
-    day
-    (Maybe.fromMaybe "−" . fmap Msg.get . monthToKey $ month)
-    (fromIntegral year)
-  where (year, month, day) = Calendar.toGregorian date
-
-monthAndYear :: Day -> Text
-monthAndYear date =
-  T.intercalate " "
-    [ Maybe.fromMaybe "" . fmap ((\t -> T.concat [t, " "]) . Msg.get) . monthToKey $ month
-    , T.pack . show $ year
-    ]
-  where (year, month, _) = Calendar.toGregorian date
-
-monthToKey :: Int -> Maybe Key
-monthToKey 1  = Just Msg.Month_January
-monthToKey 2  = Just Msg.Month_February
-monthToKey 3  = Just Msg.Month_March
-monthToKey 4  = Just Msg.Month_April
-monthToKey 5  = Just Msg.Month_May
-monthToKey 6  = Just Msg.Month_June
-monthToKey 7  = Just Msg.Month_July
-monthToKey 8  = Just Msg.Month_August
-monthToKey 9  = Just Msg.Month_September
-monthToKey 10 = Just Msg.Month_October
-monthToKey 11 = Just Msg.Month_November
-monthToKey 12 = Just Msg.Month_December
-monthToKey _  = Nothing
-
-price :: Currency -> Int -> Text
-price (Currency currency) amount = T.concat [ number amount, " ", currency ]
-
-number :: Int -> Text
-number n =
-  T.pack
-  . (++) (if n < 0 then "-" else "")
-  . reverse
-  . concat
-  . L.intersperse " "
-  . group 3
-  . reverse
-  . show
-  . abs $ n
-
-group :: Int -> [a] -> [[a]]
-group n xs =
-  if length xs <= n
-    then [xs]
-    else (take n xs) : (group n (drop n xs))