diff --git a/build.zig b/build.zig
index bdae688..2feb6c6 100644
--- a/build.zig
+++ b/build.zig
@@ -4,6 +4,7 @@ pub const Routes = @import("src/Routes.zig");
 pub const GenerateMimeTypes = @import("src/GenerateMimeTypes.zig");
 
 const zmpl_build = @import("zmpl");
+const Environment = enum { development, testing, production };
 
 pub fn build(b: *std.Build) !void {
     const target = b.standardTargetOptions(.{});
@@ -106,7 +107,10 @@ pub fn build(b: *std.Build) !void {
     main_tests.root_module.addImport("jetcommon", jetcommon_dep.module("jetcommon"));
     main_tests.root_module.addImport("httpz", httpz_dep.module("httpz"));
     main_tests.root_module.addImport("smtp", smtp_client_dep.module("smtp_client"));
+    const test_build_options = b.addOptions();
+    test_build_options.addOption(Environment, "environment", .testing);
     const run_main_tests = b.addRunArtifact(main_tests);
+    main_tests.root_module.addOptions("build_options", test_build_options);
 
     const test_step = b.step("test", "Run library tests");
     test_step.dependOn(&run_main_tests.step);
@@ -123,12 +127,13 @@ pub fn jetzigInit(b: *std.Build, exe: *std.Build.Step.Compile, options: JetzigIn
         return error.ZmplVersionNotSupported;
     }
 
+    _ = b.option([]const u8, "seed", "Internal test seed");
+
     const target = b.host;
     const optimize = exe.root_module.optimize orelse .Debug;
 
     if (optimize != .Debug) exe.linkLibC();
 
-    const Environment = enum { development, testing, production };
     const environment = b.option(
         Environment,
         "environment",
@@ -207,7 +212,6 @@ pub fn jetzigInit(b: *std.Build, exe: *std.Build.Step.Compile, options: JetzigIn
     exe_routes_file.root_module.addImport("zmpl", zmpl_module);
 
     const run_routes_file_cmd = b.addRunArtifact(exe_routes_file);
-    run_routes_file_cmd.has_side_effects = true; // FIXME
     const routes_file_path = run_routes_file_cmd.addOutputFileArg("routes.zig");
     run_routes_file_cmd.addArgs(&.{
         root_path,
@@ -217,6 +221,7 @@ pub fn jetzigInit(b: *std.Build, exe: *std.Build.Step.Compile, options: JetzigIn
         jobs_path,
         mailers_path,
     });
+
     const routes_module = b.createModule(.{ .root_source_file = routes_file_path });
     routes_module.addImport("jetzig", jetzig_module);
     exe.root_module.addImport("routes", routes_module);
@@ -262,7 +267,10 @@ pub fn jetzigInit(b: *std.Build, exe: *std.Build.Step.Compile, options: JetzigIn
     run_static_routes_cmd.expectExitCode(0);
 
     const run_tests_file_cmd = b.addRunArtifact(exe_routes_file);
+    run_tests_file_cmd.step.dependOn(&run_routes_file_cmd.step);
+
     const tests_file_path = run_tests_file_cmd.addOutputFileArg("tests.zig");
+
     run_tests_file_cmd.addArgs(&.{
         root_path,
         b.pathFromRoot("src"),
@@ -270,8 +278,15 @@ pub fn jetzigInit(b: *std.Build, exe: *std.Build.Step.Compile, options: JetzigIn
         views_path,
         jobs_path,
         mailers_path,
+        try randomSeed(b), // Hack to force cache skip - let's find a better way.
     });
 
+    for (try scanSourceFiles(b)) |sub_path| {
+        // XXX: We don't use these args, but they help Zig's build system to cache/bust steps.
+        run_routes_file_cmd.addFileArg(.{ .src_path = .{ .owner = b, .sub_path = sub_path } });
+        run_tests_file_cmd.addFileArg(.{ .src_path = .{ .owner = b, .sub_path = sub_path } });
+    }
+
     const exe_unit_tests = b.addTest(.{
         .root_source_file = tests_file_path,
         .target = target,
@@ -280,6 +295,8 @@ pub fn jetzigInit(b: *std.Build, exe: *std.Build.Step.Compile, options: JetzigIn
     });
     exe_unit_tests.root_module.addImport("jetzig", jetzig_module);
     exe_unit_tests.root_module.addImport("static", static_module);
+    exe_unit_tests.root_module.addImport("routes", routes_module);
+    exe_unit_tests.root_module.addImport("main", main_module);
 
     var it = exe.root_module.import_table.iterator();
     while (it.next()) |import| {
@@ -303,12 +320,10 @@ pub fn jetzigInit(b: *std.Build, exe: *std.Build.Step.Compile, options: JetzigIn
     }
 
     const run_exe_unit_tests = b.addRunArtifact(exe_unit_tests);
-
     const test_step = b.step("jetzig:test", "Run tests");
-    test_step.dependOn(&run_static_routes_cmd.step);
     test_step.dependOn(&run_exe_unit_tests.step);
-    test_step.dependOn(&run_tests_file_cmd.step);
-    exe_unit_tests.root_module.addImport("routes", routes_module);
+    run_exe_unit_tests.step.dependOn(&run_static_routes_cmd.step);
+    run_exe_unit_tests.step.dependOn(&run_routes_file_cmd.step);
 
     const routes_step = b.step("jetzig:routes", "List all routes in your app");
     const exe_routes = b.addExecutable(.{
@@ -346,7 +361,7 @@ fn registerDatabaseSteps(b: *std.Build, exe_database: *std.Build.Step.Compile) v
         .{ "rollback", "Roll back a migration in your Jetzig app's database." },
         .{ "create", "Create a database for your Jetzig app." },
         .{ "drop", "Drop your Jetzig app's database." },
-        .{ "dump", "Read your app's database and generate a JetQuery schema." },
+        .{ "reflect", "Read your app's database and generate a JetQuery schema." },
     };
 
     inline for (commands) |command| {
@@ -411,3 +426,30 @@ fn isSourceFile(b: *std.Build, path: []const u8) !bool {
     };
     return stat.kind == .file;
 }
+
+fn scanSourceFiles(b: *std.Build) ![]const []const u8 {
+    var buf = std.ArrayList([]const u8).init(b.allocator);
+
+    var src_dir = try std.fs.openDirAbsolute(b.pathFromRoot("src"), .{ .iterate = true });
+    defer src_dir.close();
+
+    var walker = try src_dir.walk(b.allocator);
+    defer walker.deinit();
+
+    while (try walker.next()) |entry| {
+        if (entry.kind == .file) try buf.append(
+            try std.fs.path.join(b.allocator, &.{ "src", entry.path }),
+        );
+    }
+    return try buf.toOwnedSlice();
+}
+
+fn randomSeed(b: *std.Build) ![]const u8 {
+    const seed = try b.allocator.alloc(u8, 32);
+    const chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+    for (0..32) |index| {
+        seed[index] = chars[std.crypto.random.intRangeAtMost(u8, 0, chars.len - 1)];
+    }
+
+    return seed;
+}
diff --git a/build.zig.zon b/build.zig.zon
index 8f9565e..b4dc192 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -7,14 +7,16 @@
             .hash = "1220d0e8734628fd910a73146e804d10a3269e3e7d065de6bb0e3e88d5ba234eb163",
         },
         .zmpl = .{
-            .path = "../zmpl",
+            .url = "https://github.com/jetzig-framework/zmpl/archive/517b453f333c328ff5ebafa49020b1040e54e880.tar.gz",
+            .hash = "1220798a4647e3b0766aad653830a2601e11c567ba6bfe83e526eb91d04a6c45f7d8",
         },
         .jetkv = .{
             .url = "https://github.com/jetzig-framework/jetkv/archive/2b1130a48979ea2871c8cf6ca89c38b1e7062839.tar.gz",
             .hash = "12201d75d73aad5e1c996de4d5ae87a00e58479c8d469bc2eeb5fdeeac8857bc09af",
         },
         .jetquery = .{
-            .path = "../jetquery",
+            .url = "https://github.com/jetzig-framework/jetquery/archive/8a5c1660504bb6f235e0fd2add7b7aca493a855b.tar.gz",
+            .hash = "1220f5daafc820790e66a3f509289d3575c8e7841748b72620f0ba687823fa2db4e4",
         },
         .jetcommon = .{
             .url = "https://github.com/jetzig-framework/jetcommon/archive/a248776ba56d6cc2b160d593ac3305756adcd26e.tar.gz",
@@ -25,13 +27,13 @@
             .hash = "1220411a8c46d95bbf3b6e2059854bcb3c5159d428814099df5294232b9980517e9c",
         },
         .pg = .{
-            // .url = "https://github.com/karlseguin/pg.zig/archive/1491270ac43c7eba91992bb06b3758254c36e39a.tar.gz",
-            // .hash = "1220bcc68967188de7ad5d520a4629c0d1e169c111d87e6978a3c128de5ec2b6bdd0",
-            .path = "../pg.zig",
+            .url = "https://github.com/karlseguin/pg.zig/archive/9226a0a256cd000eee2f9652c8c03af8dcbed79b.tar.gz",
+            .hash = "12202b30ebf018ca398f665e51cae6d000fdfe2d08d5ec369e3110f762c548b154a4",
         },
         .smtp_client = .{
-            .url = "https://github.com/karlseguin/smtp_client.zig/archive/8fcfad9ca2d9e446612c79f4e54050cfbe81b38d.tar.gz",
-            .hash = "1220cebfcf6c63295819df92ec54abe62aad91b1d16666781194c29a7874bb7bbbda",
+            // Pending https://github.com/karlseguin/smtp_client.zig/pull/9 before using mainline
+            .url = "https://github.com/bobf/smtp_client.zig/archive/945554f22f025ba8a1efd01e56bda427bb4e22ca.tar.gz",
+            .hash = "1220de146446d0cae4396e346cb8283dd5e086491f8577ddbd5e03ad0928111d8bc6",
         },
         .httpz = .{
             .url = "https://github.com/karlseguin/http.zig/archive/da9e944de0be6e5c67ca711dd238ce82d81558b4.tar.gz",
diff --git a/cli/commands/database.zig b/cli/commands/database.zig
index bad2e94..38989ee 100644
--- a/cli/commands/database.zig
+++ b/cli/commands/database.zig
@@ -10,13 +10,13 @@ const migrate = @import("database/migrate.zig");
 const rollback = @import("database/rollback.zig");
 const create = @import("database/create.zig");
 const drop = @import("database/drop.zig");
-const dump = @import("database/dump.zig");
+const reflect = @import("database/reflect.zig");
 pub const confirm_drop_env = "JETZIG_DROP_PRODUCTION_DATABASE";
 
 /// Command line options for the `database` command.
 pub const Options = struct {
     pub const meta = .{
-        .usage_summary = "[migrate|rollback|create|drop|dump]",
+        .usage_summary = "[migrate|rollback|create|drop|reflect]",
         .full_text =
         \\Manage the application's database.
         \\
@@ -40,13 +40,13 @@ pub fn run(
     defer arena.deinit();
     const alloc = arena.allocator();
 
-    const Action = enum { migrate, rollback, create, drop, dump };
+    const Action = enum { migrate, rollback, create, drop, reflect };
     const map = std.StaticStringMap(Action).initComptime(.{
         .{ "migrate", .migrate },
         .{ "rollback", .rollback },
         .{ "create", .create },
         .{ "drop", .drop },
-        .{ "dump", .dump },
+        .{ "reflect", .reflect },
     });
 
     const action = if (main_options.positionals.len > 0)
@@ -74,7 +74,7 @@ pub fn run(
             .rollback => rollback.run(alloc, cwd, sub_args, options, T, main_options),
             .create => create.run(alloc, cwd, sub_args, options, T, main_options),
             .drop => drop.run(alloc, cwd, sub_args, options, T, main_options),
-            .dump => dump.run(alloc, cwd, sub_args, options, T, main_options),
+            .reflect => reflect.run(alloc, cwd, sub_args, options, T, main_options),
         };
     };
 }
diff --git a/cli/commands/database/dump.zig b/cli/commands/database/reflect.zig
similarity index 91%
rename from cli/commands/database/dump.zig
rename to cli/commands/database/reflect.zig
index 167d68e..fecdd40 100644
--- a/cli/commands/database/dump.zig
+++ b/cli/commands/database/reflect.zig
@@ -19,7 +19,7 @@ pub fn run(
             \\
             \\Example:
             \\
-            \\  jetzig database dump
+            \\  jetzig database reflect
             \\
         , .{});
 
@@ -30,6 +30,6 @@ pub fn run(
         "zig",
         "build",
         util.environmentBuildOption(main_options.options.environment),
-        "jetzig:database:dump",
+        "jetzig:database:reflect",
     });
 }
diff --git a/cli/commands/init.zig b/cli/commands/init.zig
index efb78fb..215acb1 100644
--- a/cli/commands/init.zig
+++ b/cli/commands/init.zig
@@ -104,6 +104,14 @@ pub fn run(
         &[_]Replace{.{ .from = "jetzig-demo", .to = project_name }},
     );
 
+    try copySourceFile(
+        allocator,
+        install_dir,
+        "demo/config/database.zig",
+        "config/database.zig",
+        null,
+    );
+
     try copySourceFile(
         allocator,
         install_dir,
diff --git a/cli/commands/tests.zig b/cli/commands/tests.zig
index 49257ad..1654da4 100644
--- a/cli/commands/tests.zig
+++ b/cli/commands/tests.zig
@@ -37,8 +37,7 @@ pub fn run(
     try util.execCommand(allocator, &.{
         "zig",
         "build",
-        "-e",
-        "testing",
+        "-Denvironment=testing",
         "jetzig:test",
     });
 }
diff --git a/demo/.gitignore b/demo/.gitignore
index b08979b..1ddcd8a 100644
--- a/demo/.gitignore
+++ b/demo/.gitignore
@@ -3,3 +3,4 @@ zig-out/
 static/
 src/app/views/**/.*.zig
 .DS_Store
+log/
diff --git a/demo/src/app/views/session.zig b/demo/src/app/views/session.zig
index 3108823..cec1fdb 100644
--- a/demo/src/app/views/session.zig
+++ b/demo/src/app/views/session.zig
@@ -6,7 +6,7 @@ pub fn index(request: *jetzig.Request, data: *jetzig.Data) !jetzig.View {
 
     const session = try request.session();
 
-    if (try session.get("message")) |message| {
+    if (session.get("message")) |message| {
         try root.put("message", message);
     } else {
         try root.put("message", data.string("No message saved yet"));
diff --git a/demo/src/config/database.zig b/demo/src/config/database.zig
new file mode 100644
index 0000000..676b606
--- /dev/null
+++ b/demo/src/config/database.zig
@@ -0,0 +1,48 @@
+pub const database = .{
+    // Null adapter fails when a database call is invoked.
+    .development = .{
+        .adapter = .null,
+    },
+    .testing = .{
+        .adapter = .null,
+    },
+    .production = .{
+        .adapter = .null,
+    },
+    // PostgreSQL adapter configuration.
+    //
+    // All options except `adapter` can be configured using environment variables:
+    //
+    // * JETQUERY_HOSTNAME
+    // * JETQUERY_PORT
+    // * JETQUERY_USERNAME
+    // * JETQUERY_PASSWORD
+    // * JETQUERY_DATABASE
+    //
+    // .testing = .{
+    //     .adapter = .postgresql,
+    //     .hostname = "localhost",
+    //     .port = 5432,
+    //     .username = "postgres",
+    //     .password = "password",
+    //     .database = "myapp_testing",
+    // },
+    //
+    // .development = .{
+    //     .adapter = .postgresql,
+    //     .hostname = "localhost",
+    //     .port = 5432,
+    //     .username = "postgres",
+    //     .password = "password",
+    //     .database = "myapp_development",
+    // },
+    //
+    // .production = .{
+    //     .adapter = .postgresql,
+    //     .hostname = "localhost",
+    //     .port = 5432,
+    //     .username = "postgres",
+    //     .password = "password",
+    //     .database = "myapp_production",
+    // },
+};
diff --git a/src/commands/database.zig b/src/commands/database.zig
index af911cb..8607185 100644
--- a/src/commands/database.zig
+++ b/src/commands/database.zig
@@ -14,7 +14,7 @@ const production_drop_failure_message = "To drop a production database, " ++
 
 const environment = jetzig.build_options.environment;
 const config = @field(jetquery.config.database, @tagName(environment));
-const Action = enum { migrate, rollback, create, drop, dump };
+const Action = enum { migrate, rollback, create, drop, reflect };
 
 pub fn main() !void {
     var gpa = std.heap.GeneralPurposeAllocator(.{}){};
@@ -35,7 +35,7 @@ pub fn main() !void {
         .{ "rollback", .rollback },
         .{ "create", .create },
         .{ "drop", .drop },
-        .{ "dump", .dump },
+        .{ "reflect", .reflect },
     });
     const action = map.get(args[1]) orelse return error.JetzigUnrecognizedDatabaseArgument;
 
@@ -80,7 +80,7 @@ pub fn main() !void {
                 try repo.dropDatabase(config.database, .{});
             }
         },
-        .dump => {
+        .reflect => {
             var cwd = try jetzig.util.detectJetzigProjectDir();
             defer cwd.close();
 
@@ -99,12 +99,12 @@ pub fn main() !void {
                     ,
                 },
             );
-            const dump = try reflect.generateSchema();
+            const schema = try reflect.generateSchema();
             const path = try cwd.realpathAlloc(
                 allocator,
                 try std.fs.path.join(allocator, &.{ "src", "app", "database", "Schema.zig" }),
             );
-            try jetzig.util.createFile(path, dump);
+            try jetzig.util.createFile(path, schema);
             std.log.info("Database schema written to `{s}`.", .{path});
         },
     }
@@ -119,7 +119,7 @@ fn migrationsRepo(action: Action, allocator: std.mem.Allocator) !MigrationsRepo
             .admin = switch (action) {
                 .migrate, .rollback => false,
                 .create, .drop => true,
-                .dump => unreachable, // We use a separate repo for schema reflection.
+                .reflect => unreachable, // We use a separate repo for schema reflection.
             },
             .context = .migration,
         },
diff --git a/src/jetzig/config.zig b/src/jetzig/config.zig
index b81029d..cce32c3 100644
--- a/src/jetzig/config.zig
+++ b/src/jetzig/config.zig
@@ -97,10 +97,8 @@ pub const job_worker_threads: usize = 1;
 /// milliseconds.
 pub const job_worker_sleep_interval_ms: usize = 10;
 
-/// Database Schema.
-pub const Schema: type = struct {
-    pub const _null = struct {}; // https://github.com/ziglang/zig/pull/21331
-};
+/// Database Schema. Set to `@import("Schema")` to load `src/app/database/Schema.zig`.
+pub const Schema: type = struct {};
 
 /// Key-value store options. Set backend to `.file` to use a file-based store.
 /// When using `.file` backend, you must also set `.file_options`.
@@ -166,7 +164,7 @@ pub const force_development_email_delivery = false;
 /// Reconciles a configuration value from user-defined values and defaults provided by Jetzig.
 pub fn get(T: type, comptime key: []const u8) T {
     const self = @This();
-    if (!@hasDecl(self, key)) @panic("Unknown config option: " ++ key);
+    if (!@hasDecl(self, key)) @compileError("Unknown config option: " ++ key);
 
     if (@hasDecl(root, "jetzig_options") and @hasDecl(root.jetzig_options, key)) {
         return @field(root.jetzig_options, key);
diff --git a/src/jetzig/database.zig b/src/jetzig/database.zig
index c30df34..b1c4283 100644
--- a/src/jetzig/database.zig
+++ b/src/jetzig/database.zig
@@ -10,10 +10,10 @@ pub fn Query(comptime model: anytype) type {
     return jetzig.jetquery.Query(adapter, Schema, model);
 }
 
-pub fn repo(allocator: std.mem.Allocator, app: *const jetzig.App) !Repo {
+pub fn repo(allocator: std.mem.Allocator, app: anytype) !Repo {
     // XXX: Is this terrible ?
     const Callback = struct {
-        var jetzig_app: *const jetzig.App = undefined;
+        var jetzig_app: @TypeOf(app) = undefined;
         pub fn callbackFn(event: jetzig.jetquery.events.Event) !void {
             try eventCallback(event, jetzig_app);
         }
@@ -30,7 +30,7 @@ pub fn repo(allocator: std.mem.Allocator, app: *const jetzig.App) !Repo {
     );
 }
 
-fn eventCallback(event: jetzig.jetquery.events.Event, app: *const jetzig.App) !void {
+fn eventCallback(event: jetzig.jetquery.events.Event, app: anytype) !void {
     try app.server.logger.logSql(event);
     if (event.err) |err| {
         try app.server.logger.ERROR("[database] {?s}", .{err.message});
diff --git a/src/jetzig/http/Session.zig b/src/jetzig/http/Session.zig
index 40607e3..1c96a60 100644
--- a/src/jetzig/http/Session.zig
+++ b/src/jetzig/http/Session.zig
@@ -47,8 +47,6 @@ pub fn reset(self: *Self) !void {
 
 /// Free allocated memory.
 pub fn deinit(self: *Self) void {
-    if (self.state != .parsed) return;
-
     self.data.deinit();
 }
 
@@ -78,7 +76,7 @@ pub fn getT(
 
 /// Put a value into the session.
 pub fn put(self: *Self, key: []const u8, value: anytype) !void {
-    if (self.state != .parsed) return error.UnparsedSessionCookie;
+    std.debug.assert(self.state == .parsed);
 
     switch (self.data.value.?.*) {
         .object => |*object| {
@@ -90,10 +88,9 @@ pub fn put(self: *Self, key: []const u8, value: anytype) !void {
     try self.save();
 }
 
-// removes true if a value was removed
-// and false otherwise
+// Returns `true` if a value was removed and `false` otherwise.
 pub fn remove(self: *Self, key: []const u8) !bool {
-    if (self.state != .parsed) return error.UnparsedSessionCookie;
+    std.debug.assert(self.state == .parsed);
 
     // copied from `get()`
     const result = switch (self.data.value.?.*) {
@@ -191,7 +188,7 @@ test "put and get session key/value" {
 
     try session.parse();
     try session.put("foo", data.string("bar"));
-    var value = (try session.get("foo")).?;
+    var value = (session.get("foo")).?;
     try std.testing.expectEqualStrings(try value.toString(), "bar");
 }
 
@@ -210,11 +207,11 @@ test "remove session key/value" {
 
     try session.parse();
     try session.put("foo", data.string("bar"));
-    var value = (try session.get("foo")).?;
+    var value = (session.get("foo")).?;
     try std.testing.expectEqualStrings(try value.toString(), "bar");
 
     try std.testing.expectEqual(true, try session.remove("foo"));
-    try std.testing.expectEqual(null, try session.get("foo"));
+    try std.testing.expectEqual(null, session.get("foo"));
 }
 
 test "get value from parsed/decrypted cookie" {
@@ -231,7 +228,7 @@ test "get value from parsed/decrypted cookie" {
     defer session.deinit();
 
     try session.parse();
-    var value = (try session.get("foo")).?;
+    var value = (session.get("foo")).?;
     try std.testing.expectEqualStrings("bar", try value.toString());
 }
 
diff --git a/src/jetzig/loggers/TestLogger.zig b/src/jetzig/loggers/TestLogger.zig
index 6ffe5ff..9683451 100644
--- a/src/jetzig/loggers/TestLogger.zig
+++ b/src/jetzig/loggers/TestLogger.zig
@@ -4,7 +4,8 @@ const jetzig = @import("../../jetzig.zig");
 
 const TestLogger = @This();
 
-enabled: bool = false,
+mode: enum { stream, file, disable },
+file: ?std.fs.File = null,
 
 pub fn TRACE(self: TestLogger, comptime message: []const u8, args: anytype) !void {
     try self.log(.TRACE, message, args);
@@ -55,7 +56,10 @@ pub fn log(
     comptime message: []const u8,
     args: anytype,
 ) !void {
-    if (self.enabled) {
-        std.debug.print("-- test logger: " ++ @tagName(level) ++ " " ++ message ++ "\n", args);
+    const template = "-- test logger: " ++ @tagName(level) ++ " " ++ message ++ "\n";
+    switch (self.mode) {
+        .stream => std.debug.print(template, args),
+        .file => try self.file.?.writer().print(template, args),
+        .disable => {},
     }
 }
diff --git a/src/jetzig/middleware.zig b/src/jetzig/middleware.zig
index 9c01558..e3e5b20 100644
--- a/src/jetzig/middleware.zig
+++ b/src/jetzig/middleware.zig
@@ -3,6 +3,7 @@ const jetzig = @import("../jetzig.zig");
 
 pub const HtmxMiddleware = @import("middleware/HtmxMiddleware.zig");
 pub const CompressionMiddleware = @import("middleware/CompressionMiddleware.zig");
+pub const AuthMiddleware = @import("middleware/AuthMiddleware.zig");
 
 const RouteOptions = struct {
     content: ?[]const u8 = null,
diff --git a/src/jetzig/middleware/AuthMiddleware.zig b/src/jetzig/middleware/AuthMiddleware.zig
index 122273b..22f8b35 100644
--- a/src/jetzig/middleware/AuthMiddleware.zig
+++ b/src/jetzig/middleware/AuthMiddleware.zig
@@ -1,5 +1,5 @@
 const std = @import("std");
-const jetzig = @import("jetzig");
+const jetzig = @import("../../jetzig.zig");
 
 pub const middleware_name = "auth";
 
@@ -9,7 +9,7 @@ const user_model = jetzig.config.get(jetzig.auth.AuthOptions, "auth").user_model
 /// Define any custom data fields you want to store here. Assigning to these fields in the `init`
 /// function allows you to access them in the `beforeRequest` and `afterRequest` functions, where
 /// they can also be modified.
-user: ?@TypeOf(jetzig.database.Query(user_model).find(0)).ResultType(),
+user: ?@TypeOf(jetzig.database.Query(user_model).find(0)).ResultType,
 
 const Self = @This();
 
diff --git a/src/jetzig/testing/App.zig b/src/jetzig/testing/App.zig
index b58e14f..7230b67 100644
--- a/src/jetzig/testing/App.zig
+++ b/src/jetzig/testing/App.zig
@@ -12,6 +12,11 @@ store: *jetzig.kv.Store,
 cache: *jetzig.kv.Store,
 job_queue: *jetzig.kv.Store,
 multipart_boundary: ?[]const u8 = null,
+logger: jetzig.loggers.Logger,
+server: Server,
+repo: *jetzig.database.Repo,
+
+const Server = struct { logger: jetzig.loggers.Logger };
 
 const initHook = jetzig.root.initHook;
 
@@ -31,20 +36,39 @@ pub fn init(allocator: std.mem.Allocator, routes_module: type) !App {
     const arena = try allocator.create(std.heap.ArenaAllocator);
     arena.* = std.heap.ArenaAllocator.init(allocator);
 
-    return .{
+    var dir = try std.fs.cwd().makeOpenPath("log", .{});
+    const file = try dir.createFile("test.log", .{ .exclusive = false, .truncate = false });
+
+    const logger = jetzig.loggers.Logger{
+        .test_logger = jetzig.loggers.TestLogger{ .mode = .file, .file = file },
+    };
+
+    const alloc = arena.allocator();
+    const app = try alloc.create(App);
+    const repo = try alloc.create(jetzig.database.Repo);
+
+    app.* = App{
         .arena = arena,
         .allocator = allocator,
         .routes = &routes_module.routes,
         .store = try createStore(arena.allocator()),
         .cache = try createStore(arena.allocator()),
         .job_queue = try createStore(arena.allocator()),
+        .logger = logger,
+        .server = .{ .logger = logger },
+        .repo = repo,
     };
+
+    repo.* = try jetzig.database.repo(alloc, app.*);
+
+    return app.*;
 }
 
 /// Free allocated resources for test app.
 pub fn deinit(self: *App) void {
     self.arena.deinit();
     self.allocator.destroy(self.arena);
+    if (self.logger.test_logger.file) |file| file.close();
 }
 
 const RequestOptions = struct {
@@ -85,19 +109,21 @@ pub fn request(
     const options = try buildOptions(allocator, self, args);
     const routes = try jetzig.App.createRoutes(allocator, self.routes);
 
-    const logger = jetzig.loggers.Logger{ .test_logger = jetzig.loggers.TestLogger{} };
     var log_queue = jetzig.loggers.LogQueue.init(allocator);
+
     // We init the `std.process.EnvMap` directly here (instead of calling `std.process.getEnvMap`
     // to ensure that tests run in a clean environment. Users can manually add items to the
     // environment within a test if required.
     const vars = jetzig.Environment.Vars{ .env_map = std.process.EnvMap.init(allocator) };
     var server = jetzig.http.Server{
         .allocator = allocator,
-        .logger = logger,
+        .logger = self.logger,
         .env = .{
+            .parent_allocator = undefined,
+            .arena = undefined,
             .allocator = allocator,
             .vars = vars,
-            .logger = logger,
+            .logger = self.logger,
             .bind = undefined,
             .port = undefined,
             .detach = false,
@@ -114,7 +140,7 @@ pub fn request(
         .cache = self.cache,
         .job_queue = self.job_queue,
         .global = undefined,
-        .repo = undefined, // TODO - database test helpers
+        .repo = self.repo,
     };
 
     try server.decodeStaticParams();
@@ -154,7 +180,8 @@ pub fn params(self: App, args: anytype) []Param {
     const allocator = self.arena.allocator();
     var array = std.ArrayList(Param).init(allocator);
     inline for (@typeInfo(@TypeOf(args)).@"struct".fields) |field| {
-        array.append(.{ .key = field.name, .value = @field(args, field.name) }) catch @panic("OOM");
+        const value = coerceString(allocator, @field(args, field.name));
+        array.append(.{ .key = field.name, .value = value }) catch @panic("OOM");
     }
     return array.toOwnedSlice() catch @panic("OOM");
 }
@@ -333,3 +360,14 @@ fn buildHeaders(allocator: std.mem.Allocator, args: anytype) ![]const jetzig.tes
     }
     return try headers.toOwnedSlice();
 }
+
+fn coerceString(allocator: std.mem.Allocator, value: anytype) []const u8 {
+    return switch (@typeInfo(@TypeOf(value))) {
+        .int,
+        .float,
+        .comptime_int,
+        .comptime_float,
+        => std.fmt.allocPrint(allocator, "{d}", .{value}) catch @panic("OOM"),
+        else => value, // TODO: Handle more complex types - arrays, objects, etc.
+    };
+}
diff --git a/src/test_runner.zig b/src/test_runner.zig
index a936d37..0982b82 100644
--- a/src/test_runner.zig
+++ b/src/test_runner.zig
@@ -7,6 +7,8 @@ pub const std_options = std.Options{
     .logFn = log,
 };
 
+pub const jetzig_options = @import("main").jetzig_options;
+
 pub fn log(
     comptime message_level: std.log.Level,
     comptime scope: @Type(.enum_literal),
@@ -144,14 +146,14 @@ const Test = struct {
 
     fn printSkipped(self: Test, writer: anytype) !void {
         try writer.print(
-            jetzig.colors.yellow("[SKIP]") ++ name_template,
+            "[" ++ jetzig.colors.yellow("SKIP") ++ "]" ++ name_template,
             .{ self.module orelse "tests", self.name },
         );
     }
 
     fn printLeaked(self: Test, writer: anytype) !void {
         _ = self;
-        try writer.print(jetzig.colors.red(" [LEAKED]"), .{});
+        try writer.print("[" ++ jetzig.colors.red("LEAKED") ++ "] ", .{});
     }
 
     fn printDuration(self: Test, writer: anytype) !void {
@@ -251,6 +253,7 @@ fn printSummary(tests: []const Test, start: i128) !void {
     } else {
         try writer.print(jetzig.colors.red("      FAIL   ") ++ "\n", .{});
         try writer.print(jetzig.colors.red("      ▔▔▔▔") ++ "\n", .{});
+        try writer.print("Server logs: " ++ jetzig.colors.cyan("log/test.log") ++ "\n\n", .{});
         std.process.exit(1);
     }
 }