diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index b95c93c..3432c1e 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -4,7 +4,7 @@
     "build": {
         "dockerfile": "Dockerfile",
         "args": {
-            "GO_VERSION": "1.24.0",
+            "GO_VERSION": "1.24.1",
             "GOLANGCI_LINT_VERSION": "1.64.5",
             "MIGRATE_VERSION": "4.18.2"
         }
diff --git a/.woodpecker/.build.yml b/build/ci/.build.yml
similarity index 100%
rename from .woodpecker/.build.yml
rename to build/ci/.build.yml
diff --git a/.woodpecker/.lint.yml b/build/ci/.lint.yml
similarity index 100%
rename from .woodpecker/.lint.yml
rename to build/ci/.lint.yml
diff --git a/.woodpecker/.publish.yml b/build/ci/.publish.yml
similarity index 100%
rename from .woodpecker/.publish.yml
rename to build/ci/.publish.yml
diff --git a/.woodpecker/.tests.yml b/build/ci/.tests.yml
similarity index 100%
rename from .woodpecker/.tests.yml
rename to build/ci/.tests.yml
diff --git a/Dockerfile b/build/docker/Dockerfile
similarity index 100%
rename from Dockerfile
rename to build/docker/Dockerfile
diff --git a/cmd/api/main.go b/cmd/api/main.go
index c3545bc..0a89ccb 100644
--- a/cmd/api/main.go
+++ b/cmd/api/main.go
@@ -11,7 +11,7 @@ import (
 	"syscall"
 	"time"
 
-	"gitea.qpismont.fr/qpismont/trepa/internal/accounts"
+	"gitea.qpismont.fr/qpismont/trepa/internal/accounts/api"
 	"gitea.qpismont.fr/qpismont/trepa/internal/core"
 	"github.com/jmoiron/sqlx"
 )
@@ -105,7 +105,7 @@ func setupDB() *sqlx.DB {
 func setupRouter(db *sqlx.DB) *core.ServerMux {
 	router := core.NewServerMux()
 
-	accounts.BindRoutes(router, db)
+	api.BindRoutes(router, db)
 
 	return router
 }
diff --git a/go.mod b/go.mod
index 4da147d..15d4a83 100644
--- a/go.mod
+++ b/go.mod
@@ -14,12 +14,19 @@ require (
 require (
 	github.com/cockroachdb/apd v1.1.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.8 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.25.0 // indirect
 	github.com/gofrs/uuid v4.4.0+incompatible // indirect
 	github.com/jackc/fake v0.0.0-20150926172116-812a484cc733 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/shopspring/decimal v1.4.0 // indirect
 	golang.org/x/crypto v0.33.0 // indirect
+	golang.org/x/net v0.34.0 // indirect
+	golang.org/x/sys v0.30.0 // indirect
 	golang.org/x/text v0.22.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index dee274e..c4f4b80 100644
--- a/go.sum
+++ b/go.sum
@@ -4,6 +4,14 @@ github.com/cockroachdb/apd v1.1.0 h1:3LFP3629v+1aKXU5Q37mxmRxX/pIu1nijXydLShEq5I
 github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/gabriel-vasile/mimetype v1.4.8 h1:FfZ3gj38NjllZIeJAmMhr+qKL8Wu+nOoI3GqacKw1NM=
+github.com/gabriel-vasile/mimetype v1.4.8/go.mod h1:ByKUIKGjh1ODkGM1asKUbQZOLGrPjydw3hYPU2YU9t8=
+github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
+github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
+github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY=
+github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
+github.com/go-playground/validator/v10 v10.25.0 h1:5Dh7cjvzR7BRZadnsVOzPhWsrwUr0nmsZJxEAnFLNO8=
+github.com/go-playground/validator/v10 v10.25.0/go.mod h1:GGzBIJMuE98Ic/kJsBXbz1x/7cByt++cQ+YOuDM5wus=
 github.com/go-sql-driver/mysql v1.8.1 h1:LedoTUt/eveggdHS9qUFC1EFSa8bU2+1pZjSRpvNJ1Y=
 github.com/go-sql-driver/mysql v1.8.1/go.mod h1:wEBSXgmK//2ZFJyE+qWnIsVGmvmEKlqwuVSjsCm7DZg=
 github.com/gofrs/uuid v4.4.0+incompatible h1:3qXRTX8/NbyulANqlc0lchS1gqAVxRgsuW1YrTJupqA=
@@ -18,6 +26,8 @@ github.com/jmoiron/sqlx v1.4.0 h1:1PLqN7S1UYp5t4SrVVnt4nUVNemrDAtxlulVe+Qgm3o=
 github.com/jmoiron/sqlx v1.4.0/go.mod h1:ZrZ7UsYB/weZdl2Bxg6jCRO9c3YHl8r3ahlKmRT4JLY=
 github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
 github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
+github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
+github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/magiconair/properties v1.8.9 h1:nWcCbLq1N2v/cpNsy5WvQ37Fb+YElfq20WJ/a8RkpQM=
@@ -34,6 +44,10 @@ github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOf
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 golang.org/x/crypto v0.33.0 h1:IOBPskki6Lysi0lo9qQvbxiQ+FvsCC/YWOecCHAixus=
 golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
+golang.org/x/net v0.34.0 h1:Mb7Mrk043xzHgnRM88suvJFwzVrRfHEHJEl5/71CKw0=
+golang.org/x/net v0.34.0/go.mod h1:di0qlW3YNM5oh6GqDGQr92MyTozJPmybPK4Ev/Gm31k=
+golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
+golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
 golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
diff --git a/internal/accounts/api/controller.go b/internal/accounts/api/controller.go
new file mode 100644
index 0000000..11b7522
--- /dev/null
+++ b/internal/accounts/api/controller.go
@@ -0,0 +1,33 @@
+package api
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"gitea.qpismont.fr/qpismont/trepa/internal/accounts/domain"
+	"gitea.qpismont.fr/qpismont/trepa/internal/core"
+	"github.com/go-playground/validator/v10"
+)
+
+var validate *validator.Validate
+
+type Controller struct {
+	service domain.AccountService
+}
+
+func NewController(service domain.AccountService) Controller {
+	return Controller{service: service}
+}
+
+func (c *Controller) Login(w *core.Response, r *http.Request) {
+	var request LoginAccountRequest
+	if err := json.NewDecoder(r.Body).Decode(&request); err != nil {
+		w.WriteError(core.ErrInvalidStruct)
+		return
+	}
+
+	if err := validate.Struct(request); err != nil {
+		w.WriteError(core.ErrInvalidStruct)
+		return
+	}
+}
diff --git a/internal/accounts/api/dto.go b/internal/accounts/api/dto.go
new file mode 100644
index 0000000..aadd037
--- /dev/null
+++ b/internal/accounts/api/dto.go
@@ -0,0 +1,6 @@
+package api
+
+type LoginAccountRequest struct {
+	Username string `json:"username" validate:"required"`
+	Password string `json:"password" validate:"required"`
+}
diff --git a/internal/accounts/api/routes.go b/internal/accounts/api/routes.go
new file mode 100644
index 0000000..3f088db
--- /dev/null
+++ b/internal/accounts/api/routes.go
@@ -0,0 +1,16 @@
+package api
+
+import (
+	"gitea.qpismont.fr/qpismont/trepa/internal/accounts/repository"
+	"gitea.qpismont.fr/qpismont/trepa/internal/accounts/service"
+	"gitea.qpismont.fr/qpismont/trepa/internal/core"
+	"github.com/jmoiron/sqlx"
+)
+
+func BindRoutes(srv *core.ServerMux, db *sqlx.DB) {
+	repository := repository.NewRepository(db)
+	service := service.NewService(repository)
+	controller := NewController(service)
+
+	srv.HandleFunc("POST /accounts/login", controller.Login)
+}
diff --git a/internal/accounts/controller.go b/internal/accounts/controller.go
deleted file mode 100644
index a807d79..0000000
--- a/internal/accounts/controller.go
+++ /dev/null
@@ -1,20 +0,0 @@
-package accounts
-
-import (
-	"net/http"
-
-	"gitea.qpismont.fr/qpismont/trepa/internal/core"
-)
-
-type Controller struct {
-	service Service
-}
-
-func NewController(service Service) Controller {
-	return Controller{service: service}
-}
-
-func (c *Controller) CreateAccount(w *core.Response, r *http.Request) {
-	w.WriteHeader(http.StatusCreated)
-	w.Json([]byte("test"))
-}
diff --git a/internal/accounts/model.go b/internal/accounts/domain/account.go
similarity index 94%
rename from internal/accounts/model.go
rename to internal/accounts/domain/account.go
index fad9d86..6f9d139 100644
--- a/internal/accounts/model.go
+++ b/internal/accounts/domain/account.go
@@ -1,4 +1,4 @@
-package accounts
+package domain
 
 type Account struct {
 	Id        int    `db:"id" json:"id"`
diff --git a/internal/accounts/errors.go b/internal/accounts/domain/errors.go
similarity index 95%
rename from internal/accounts/errors.go
rename to internal/accounts/domain/errors.go
index 2f1428c..2df998b 100644
--- a/internal/accounts/errors.go
+++ b/internal/accounts/domain/errors.go
@@ -1,4 +1,4 @@
-package accounts
+package domain
 
 import (
 	"net/http"
diff --git a/internal/accounts/domain/repository.go b/internal/accounts/domain/repository.go
new file mode 100644
index 0000000..1bf6b12
--- /dev/null
+++ b/internal/accounts/domain/repository.go
@@ -0,0 +1,6 @@
+package domain
+
+type AccountRepository interface {
+	Insert(account *Account) (int, error)
+	FetchOneByUsername(username string) (*Account, error)
+}
diff --git a/internal/accounts/domain/service.go b/internal/accounts/domain/service.go
new file mode 100644
index 0000000..8baaca8
--- /dev/null
+++ b/internal/accounts/domain/service.go
@@ -0,0 +1,4 @@
+package domain
+
+type AccountService interface {
+}
diff --git a/internal/accounts/repository.go b/internal/accounts/repository/account.go
similarity index 60%
rename from internal/accounts/repository.go
rename to internal/accounts/repository/account.go
index 59da0f5..5c6f42c 100644
--- a/internal/accounts/repository.go
+++ b/internal/accounts/repository/account.go
@@ -1,8 +1,9 @@
-package accounts
+package repository
 
 import (
 	"database/sql"
 
+	"gitea.qpismont.fr/qpismont/trepa/internal/accounts/domain"
 	"github.com/jmoiron/sqlx"
 )
 
@@ -10,11 +11,11 @@ type Repository struct {
 	db *sqlx.DB
 }
 
-func NewRepository(db *sqlx.DB) Repository {
-	return Repository{db: db}
+func NewRepository(db *sqlx.DB) domain.AccountRepository {
+	return &Repository{db: db}
 }
 
-func (r *Repository) Insert(account *Account) (int, error) {
+func (r *Repository) Insert(account *domain.Account) (int, error) {
 	var id int
 
 	stmt, err := r.db.Prepare(SqlInsert)
@@ -32,8 +33,8 @@ func (r *Repository) Insert(account *Account) (int, error) {
 	return id, nil
 }
 
-func (r *Repository) FetchOneByUsername(username string) (*Account, error) {
-	var account Account
+func (r *Repository) FetchOneByUsername(username string) (*domain.Account, error) {
+	var account domain.Account
 
 	err := r.db.Get(&account, SqlFetchOneByUsername, username)
 	if err != nil {
diff --git a/internal/accounts/repository_test.go b/internal/accounts/repository/account_test.go
similarity index 88%
rename from internal/accounts/repository_test.go
rename to internal/accounts/repository/account_test.go
index 552f6b1..0e56437 100644
--- a/internal/accounts/repository_test.go
+++ b/internal/accounts/repository/account_test.go
@@ -1,8 +1,9 @@
-package accounts
+package repository
 
 import (
 	"testing"
 
+	"gitea.qpismont.fr/qpismont/trepa/internal/accounts/domain"
 	"gitea.qpismont.fr/qpismont/trepa/test"
 	"github.com/magiconair/properties/assert"
 )
@@ -13,7 +14,7 @@ func TestRepository_Insert(t *testing.T) {
 
 	repo := NewRepository(db)
 
-	account := &Account{
+	account := &domain.Account{
 		Username: "test",
 		Password: "test",
 		RoleId:   1,
diff --git a/internal/accounts/const.go b/internal/accounts/repository/const.go
similarity index 90%
rename from internal/accounts/const.go
rename to internal/accounts/repository/const.go
index 6e417dd..03b80c2 100644
--- a/internal/accounts/const.go
+++ b/internal/accounts/repository/const.go
@@ -1,4 +1,4 @@
-package accounts
+package repository
 
 const (
 	SqlInsert             = "INSERT INTO accounts (username, password, role_id) VALUES ($1, $2, $3) RETURNING id"
diff --git a/internal/accounts/routes.go b/internal/accounts/routes.go
deleted file mode 100644
index 01b8553..0000000
--- a/internal/accounts/routes.go
+++ /dev/null
@@ -1,14 +0,0 @@
-package accounts
-
-import (
-	"gitea.qpismont.fr/qpismont/trepa/internal/core"
-	"github.com/jmoiron/sqlx"
-)
-
-func BindRoutes(srv *core.ServerMux, db *sqlx.DB) {
-	repository := NewRepository(db)
-	service := NewService(repository)
-	controller := NewController(service)
-
-	srv.HandleFunc("GET /accounts", controller.CreateAccount)
-}
diff --git a/internal/accounts/service.go b/internal/accounts/service.go
deleted file mode 100644
index 87f47c5..0000000
--- a/internal/accounts/service.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package accounts
-
-type Service struct {
-	repository Repository
-}
-
-func NewService(repository Repository) Service {
-	return Service{repository: repository}
-}
diff --git a/internal/accounts/service/account.go b/internal/accounts/service/account.go
new file mode 100644
index 0000000..8cca60c
--- /dev/null
+++ b/internal/accounts/service/account.go
@@ -0,0 +1,11 @@
+package service
+
+import "gitea.qpismont.fr/qpismont/trepa/internal/accounts/domain"
+
+type Service struct {
+	repository domain.AccountRepository
+}
+
+func NewService(repository domain.AccountRepository) domain.AccountService {
+	return &Service{repository: repository}
+}
diff --git a/internal/core/errors.go b/internal/core/errors.go
index c0ca822..545cccd 100644
--- a/internal/core/errors.go
+++ b/internal/core/errors.go
@@ -1,11 +1,13 @@
 package core
 
 import (
+	"encoding/json"
 	"net/http"
 )
 
 var (
-	ErrInvalidToken = NewHTTPError(http.StatusUnauthorized, "Invalid token", nil)
+	ErrInvalidToken  = NewHTTPError(http.StatusUnauthorized, "Invalid token", nil)
+	ErrInvalidStruct = NewHTTPError(http.StatusBadRequest, "Invalid struct", nil)
 )
 
 type HTTPError struct {
@@ -23,6 +25,14 @@ func (e *HTTPError) Unwrap() error {
 	return e.Cause
 }
 
+func (e *HTTPError) IntoJsonBytes() []byte {
+	json, err := json.Marshal(e)
+	if err != nil {
+		return nil
+	}
+	return json
+}
+
 func NewHTTPError(code int, message string, cause error) *HTTPError {
 	details := ""
 	if cause != nil {
diff --git a/internal/core/http.go b/internal/core/http.go
index 23fb068..a4e4aad 100644
--- a/internal/core/http.go
+++ b/internal/core/http.go
@@ -26,6 +26,12 @@ func (r *Response) WriteHeader(status int) {
 	r.Status = status
 }
 
+func (r *Response) WriteError(err *HTTPError) {
+	r.Header().Set("Content-Type", "application/json")
+	r.WriteHeader(err.Code)
+	r.Write(err.IntoJsonBytes())
+}
+
 func (r *Response) Json(json []byte) {
 	r.Header().Set("Content-Type", "application/json")
 	r.Write(json)