diff --git a/books/buildnumber.properties b/books/buildnumber.properties
index 37787a4..f903dd5 100644
--- a/books/buildnumber.properties
+++ b/books/buildnumber.properties
@@ -1,3 +1,3 @@
 #auto generated
-#Sun Feb 08 23:42:46 CET 2026
-build.number=224
+#Mon Feb 09 23:38:51 CET 2026
+build.number=226
diff --git a/books/src/commonMain/kotlin/net/keinekekse/app/App.kt b/books/src/commonMain/kotlin/net/keinekekse/app/App.kt
index 4bdb836..f436853 100644
--- a/books/src/commonMain/kotlin/net/keinekekse/app/App.kt
+++ b/books/src/commonMain/kotlin/net/keinekekse/app/App.kt
@@ -23,7 +23,6 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import net.keinekekse.app.books.generated.resources.Res
 import net.keinekekse.app.books.generated.resources.compose_multiplatform
-import net.keinekekse.app.books.ui.theme.AppTheme
 import org.jetbrains.compose.resources.painterResource
 import org.koin.compose.koinInject
 import org.koin.core.annotation.Single
@@ -33,13 +32,13 @@ private val logger = KotlinLogging.logger {}
 @Composable
 @Preview
 fun App() {
-    /*MaterialTheme*/
-    /*
-    eigenes Theme -> https://material-foundation.github.io/material-theme-builder/
-    den Download in den source code übernehmen (in Theme.kt sind Anpassungen nötig)
-    per default hat die generierte Klasse den Namen AppTheme.
-     */
-    AppTheme {
+    MaterialTheme {
+        /*
+        eigenes Theme -> https://material-foundation.github.io/material-theme-builder/
+        den Download in den source code übernehmen (in Theme.kt sind Anpassungen nötig)
+        per default hat die generierte Klasse den Namen AppTheme.
+//    AppTheme {
+         */
         val test = koinInject<TestAuth>()
         var showContent by remember { mutableStateOf(false) }
         Column(
@@ -81,8 +80,12 @@ class TestAuth(val httpClient: HttpClient) {
     private val srv = "https://kas.keinekekse.net/"
     suspend fun request(url: String) {
         logger.debug { "connecting" }
-        val response = httpClient.get(srv + url)
+//        val response = httpClient.get(srv + "testdb/books")
+//        val books: List<Book> = response.body()
+
+        val response = httpClient.get(srv + url + "testdb/books")
         val body = response.bodyAsText()
+
         logger.debug { "call to $url" }
         logger.debug { response.status }
         logger.debug { body }
diff --git a/books/src/commonMain/kotlin/net/keinekekse/app/books/Version.kt b/books/src/commonMain/kotlin/net/keinekekse/app/books/Version.kt
index beffa4d..bd3f900 100644
--- a/books/src/commonMain/kotlin/net/keinekekse/app/books/Version.kt
+++ b/books/src/commonMain/kotlin/net/keinekekse/app/books/Version.kt
@@ -4,13 +4,13 @@ import net.keinekekse.version.Version
 
 object VERSION: Version {
     override val version = "1.0.0"
-    override val fullVersion = "1.0.0+build.224"
+    override val fullVersion = "1.0.0+build.226"
     override val major = 1
     override val minor = 0
     override val patch = 0
     override val preRelease = ""
-    override val buildMetadata = "build.224"
-    override val buildDate = "2026-02-08T22:42:46.561391Z"
+    override val buildMetadata = "build.226"
+    override val buildDate = "2026-02-09T22:38:51.084372Z"
     override val displayName = "Books App"
     override val copyright = "Copyright (c) 2026 Hartmut Bauer"
     override val name = "books"
diff --git a/server/buildnumber.properties b/server/buildnumber.properties
index 2752d5a..636d780 100644
--- a/server/buildnumber.properties
+++ b/server/buildnumber.properties
@@ -1,3 +1,3 @@
 #auto generated
-#Sun Feb 08 23:42:57 CET 2026
-build.number=43
+#Tue Feb 10 00:04:01 CET 2026
+build.number=50
diff --git a/server/src/main/kotlin/net/keinekekse/app/Application.kt b/server/src/main/kotlin/net/keinekekse/app/Application.kt
index eed72ee..6f8bc5e 100644
--- a/server/src/main/kotlin/net/keinekekse/app/Application.kt
+++ b/server/src/main/kotlin/net/keinekekse/app/Application.kt
@@ -3,10 +3,7 @@ package net.keinekekse.app
 import io.github.oshai.kotlinlogging.KotlinLogging
 import io.ktor.server.application.*
 import net.keinekekse.app.server.VERSION
-import net.keinekekse.app.server.config.configureDatabase
-import net.keinekekse.app.server.config.configureKoin
-import net.keinekekse.app.server.config.configureRouting
-import net.keinekekse.app.server.config.configureSecurity
+import net.keinekekse.app.server.config.*
 
 private val logger = KotlinLogging.logger {}
 
@@ -22,13 +19,22 @@ fun main(args: Array<String>): Unit = io.ktor.server.netty.EngineMain.main(args)
 //}
 
 fun Application.module() {
-    logger.info { "\n**\n** Starting  ${VERSION.displayName} - ${VERSION.description} ${VERSION.fullVersion}\n**" }
+    logger.info {
+        """
+            
+        **
+        ** Starting  ${VERSION.displayName} - ${VERSION.description} ${VERSION.fullVersion}
+        **
+        """.trimIndent()
+    }
 
+    configureSerialization()
     configureKoin()
     configureSecurity()
-    configureRouting()
     configureDatabase()
 
+    configureRouting()
+
     /* // DB-Test
         transaction {
 
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/Version.kt b/server/src/main/kotlin/net/keinekekse/app/server/Version.kt
index 1e94f47..a690d90 100644
--- a/server/src/main/kotlin/net/keinekekse/app/server/Version.kt
+++ b/server/src/main/kotlin/net/keinekekse/app/server/Version.kt
@@ -3,14 +3,14 @@ package net.keinekekse.app.server
 import net.keinekekse.version.Version
 
 object VERSION: Version {
-    override val version = "0.1.0-beta.1+build.43"
-    override val fullVersion = "0.1.0-beta.1+build.43"
+    override val version = "0.1.0-beta.1+build.50"
+    override val fullVersion = "0.1.0-beta.1+build.50"
     override val major = 0
     override val minor = 1
     override val patch = 0
     override val preRelease = "beta.1"
-    override val buildMetadata = "build.43"
-    override val buildDate = "2026-02-08T22:42:57.727025Z"
+    override val buildMetadata = "build.50"
+    override val buildDate = "2026-02-09T23:04:01.715682Z"
     override val displayName = "kAS"
     override val copyright = "Copyright (c) 2026 Hartmut Bauer"
     override val name = "server"
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/config/koin.kt b/server/src/main/kotlin/net/keinekekse/app/server/config/koin.kt
index f763a6f..5df4384 100644
--- a/server/src/main/kotlin/net/keinekekse/app/server/config/koin.kt
+++ b/server/src/main/kotlin/net/keinekekse/app/server/config/koin.kt
@@ -2,12 +2,12 @@ package net.keinekekse.app.server.config
 
 import io.ktor.server.application.*
 import net.keinekekse.app.server.di.KoinApp
-import org.koin.dsl.koinConfiguration
+import org.koin.ktor.plugin.Koin
 import org.koin.logger.slf4jLogger
 import org.koin.plugin.module.dsl.withConfiguration
 
 fun Application.configureKoin() {
-    koinConfiguration {
+    install(Koin) {
         slf4jLogger()
         withConfiguration<KoinApp>()
     }
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/config/routing.kt b/server/src/main/kotlin/net/keinekekse/app/server/config/routing.kt
index 37b1ece..927f114 100644
--- a/server/src/main/kotlin/net/keinekekse/app/server/config/routing.kt
+++ b/server/src/main/kotlin/net/keinekekse/app/server/config/routing.kt
@@ -6,6 +6,7 @@ import io.ktor.server.auth.*
 import io.ktor.server.response.*
 import io.ktor.server.routing.*
 import net.keinekekse.app.server.VERSION
+import net.keinekekse.app.server.testdb.testDbRoute
 
 private val logger = KotlinLogging.logger {}
 
@@ -22,5 +23,7 @@ fun Application.configureRouting() {
                 call.respondText("Ktor ${VERSION.displayName} ${VERSION.fullVersion} - principal=${principal?.name}")
             }
         }
+
+        testDbRoute()
     }
 }
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/config/serialzation.kt b/server/src/main/kotlin/net/keinekekse/app/server/config/serialzation.kt
new file mode 100644
index 0000000..73bc7bc
--- /dev/null
+++ b/server/src/main/kotlin/net/keinekekse/app/server/config/serialzation.kt
@@ -0,0 +1,17 @@
+package net.keinekekse.app.server.config
+
+import io.ktor.serialization.kotlinx.json.*
+import io.ktor.server.application.*
+import io.ktor.server.plugins.contentnegotiation.*
+
+fun Application.configureSerialization() {
+    install(ContentNegotiation) {
+        json(
+            json = kotlinx.serialization.json.Json {
+                prettyPrint = true
+//                isLenient = true
+                ignoreUnknownKeys = true
+            }
+        )
+    }
+}
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/testdb/db/BookDAO.kt b/server/src/main/kotlin/net/keinekekse/app/server/testdb/db/BookDAO.kt
index 475b8a7..44e1336 100644
--- a/server/src/main/kotlin/net/keinekekse/app/server/testdb/db/BookDAO.kt
+++ b/server/src/main/kotlin/net/keinekekse/app/server/testdb/db/BookDAO.kt
@@ -1,6 +1,6 @@
 package net.keinekekse.app.server.testdb.db
 
-import net.keinekekse.app.server.testdb.model.*
+import net.keinekekse.app.book.model.*
 import org.jetbrains.exposed.v1.core.dao.id.EntityID
 import org.jetbrains.exposed.v1.core.dao.id.IntIdTable
 import org.jetbrains.exposed.v1.dao.IntEntity
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/BookRepository.kt b/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/BookRepository.kt
index dd59420..197ec01 100644
--- a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/BookRepository.kt
+++ b/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/BookRepository.kt
@@ -1,5 +1,9 @@
 package net.keinekekse.app.server.testdb.model
 
+import net.keinekekse.app.book.model.Artist
+import net.keinekekse.app.book.model.Book
+import net.keinekekse.app.book.model.Series
+
 interface BookRepository {
     suspend fun allBooks(): List<Book>
     suspend fun bookById(id: Int): Book?
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/BookRepositoryImpl.kt b/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/BookRepositoryImpl.kt
index 86c0c6c..ea679e9 100644
--- a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/BookRepositoryImpl.kt
+++ b/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/BookRepositoryImpl.kt
@@ -1,12 +1,21 @@
 package net.keinekekse.app.server.testdb.model
 
+import net.keinekekse.app.book.model.Artist
+import net.keinekekse.app.book.model.Book
+import net.keinekekse.app.book.model.Series
+import net.keinekekse.app.server.testdb.db.BookDAO
+import net.keinekekse.app.server.testdb.db.daoToModel
+import org.jetbrains.exposed.v1.jdbc.transactions.suspendTransaction
+import org.koin.core.annotation.Single
+
+@Single
 class BookRepositoryImpl : BookRepository {
-    override suspend fun allBooks(): List<Book> {
-        TODO("Not yet implemented")
+    override suspend fun allBooks(): List<Book> = suspendTransaction {
+        BookDAO.all().map(::daoToModel)
     }
 
-    override suspend fun bookById(id: Int): Book? {
-        TODO("Not yet implemented")
+    override suspend fun bookById(id: Int): Book? = suspendTransaction {
+        BookDAO.findById(id)?.let { daoToModel(it) }
     }
 
     override suspend fun booksBySeries(series: Series): List<Book> {
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/testdb/testDbRoute.kt b/server/src/main/kotlin/net/keinekekse/app/server/testdb/testDbRoute.kt
new file mode 100644
index 0000000..b8a6fc6
--- /dev/null
+++ b/server/src/main/kotlin/net/keinekekse/app/server/testdb/testDbRoute.kt
@@ -0,0 +1,28 @@
+package net.keinekekse.app.server.testdb
+
+import io.ktor.http.*
+import io.ktor.server.response.*
+import io.ktor.server.routing.*
+import net.keinekekse.app.server.testdb.model.BookRepository
+import org.koin.ktor.ext.inject
+
+fun Route.testDbRoute() {
+    val repository: BookRepository by inject<BookRepository>()
+
+//    authenticate("auth-KC") {
+    route("/testdb") {
+        get("/books") {
+//                call.respondText("Test DB route")
+            val books = repository.allBooks()
+            call.respond(books)
+        }
+        get("/book/{id}") {
+            // TODO safe toInt conv
+            val id = call.parameters["id"]!!.toInt()
+            repository.bookById(id)?.let { call.respond(it) }
+                ?: call.respondText("Book with id $id not found", status = HttpStatusCode.NotFound)
+        }
+
+    }
+//    }
+}
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/Artist.kt b/shared/src/commonMain/kotlin/net/keinekekse/app/book/model/Artist.kt
similarity index 77%
rename from server/src/main/kotlin/net/keinekekse/app/server/testdb/model/Artist.kt
rename to shared/src/commonMain/kotlin/net/keinekekse/app/book/model/Artist.kt
index dc85382..c7a0763 100644
--- a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/Artist.kt
+++ b/shared/src/commonMain/kotlin/net/keinekekse/app/book/model/Artist.kt
@@ -1,4 +1,4 @@
-package net.keinekekse.app.server.testdb.model
+package net.keinekekse.app.book.model
 
 import kotlinx.serialization.Serializable
 
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/ArtistRole.kt b/shared/src/commonMain/kotlin/net/keinekekse/app/book/model/ArtistRole.kt
similarity index 73%
rename from server/src/main/kotlin/net/keinekekse/app/server/testdb/model/ArtistRole.kt
rename to shared/src/commonMain/kotlin/net/keinekekse/app/book/model/ArtistRole.kt
index bc6cd61..504cc06 100644
--- a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/ArtistRole.kt
+++ b/shared/src/commonMain/kotlin/net/keinekekse/app/book/model/ArtistRole.kt
@@ -1,4 +1,4 @@
-package net.keinekekse.app.server.testdb.model
+package net.keinekekse.app.book.model
 
 import kotlinx.serialization.Serializable
 
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/Book.kt b/shared/src/commonMain/kotlin/net/keinekekse/app/book/model/Book.kt
similarity index 87%
rename from server/src/main/kotlin/net/keinekekse/app/server/testdb/model/Book.kt
rename to shared/src/commonMain/kotlin/net/keinekekse/app/book/model/Book.kt
index 69c76c5..f3560c8 100644
--- a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/Book.kt
+++ b/shared/src/commonMain/kotlin/net/keinekekse/app/book/model/Book.kt
@@ -1,4 +1,4 @@
-package net.keinekekse.app.server.testdb.model
+package net.keinekekse.app.book.model
 
 import kotlinx.serialization.Serializable
 
diff --git a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/Series.kt b/shared/src/commonMain/kotlin/net/keinekekse/app/book/model/Series.kt
similarity index 69%
rename from server/src/main/kotlin/net/keinekekse/app/server/testdb/model/Series.kt
rename to shared/src/commonMain/kotlin/net/keinekekse/app/book/model/Series.kt
index 6b6da16..0a353a1 100644
--- a/server/src/main/kotlin/net/keinekekse/app/server/testdb/model/Series.kt
+++ b/shared/src/commonMain/kotlin/net/keinekekse/app/book/model/Series.kt
@@ -1,4 +1,4 @@
-package net.keinekekse.app.server.testdb.model
+package net.keinekekse.app.book.model
 
 import kotlinx.serialization.Serializable