diff --git a/source/server/routes/api/v1/admin/mailtest.ts b/source/server/routes/api/v1/admin/mailtest.ts
index 44471427..608c0abf 100644
--- a/source/server/routes/api/v1/admin/mailtest.ts
+++ b/source/server/routes/api/v1/admin/mailtest.ts
@@ -1,7 +1,6 @@
 import { Request, Response } from "express";
 import sendmail from "../../../../utils/mails/send.js";
-import { getUser } from "../../../../utils/locals.js";
-import config from "../../../../utils/config.js";
+import { getLocals, getUser } from "../../../../utils/locals.js";
 import { BadRequestError } from "../../../../utils/errors.js";
 
 /**
@@ -10,6 +9,7 @@ import { BadRequestError } from "../../../../utils/errors.js";
  * This is a protected route and requires admin privileges
  */
 export default async function handleMailtest(req :Request, res :Response){
+  const {config} = getLocals(req);
   const {username :requester, email:to} = getUser(req);
   if(!to){
     throw new BadRequestError("No email address found for user "+ requester);
diff --git a/source/server/routes/api/v1/login.ts b/source/server/routes/api/v1/login.ts
index 16326218..f9493a39 100644
--- a/source/server/routes/api/v1/login.ts
+++ b/source/server/routes/api/v1/login.ts
@@ -2,7 +2,7 @@ import { createHmac } from "crypto";
 import { Request, RequestHandler, Response } from "express";
 import User, { SafeUser } from "../../../auth/User.js";
 import { BadRequestError, ForbiddenError, NotFoundError, UnauthorizedError } from "../../../utils/errors.js";
-import { AppLocals, getHost, getUser, getUserManager } from "../../../utils/locals.js";
+import { AppLocals, getHost, getLocals, getUser, getUserManager } from "../../../utils/locals.js";
 import sendmail from "../../../utils/mails/send.js";
 /**
  * 
@@ -122,7 +122,7 @@ export async function sendLoginLink(req :Request, res :Response){
   );
 
   let lang = "fr";
-  const mail_content = await (res.app.locals as AppLocals).templates.render(`emails/connection_${lang}`, {
+  const mail_content = await getLocals(req).templates.render(`emails/connection_${lang}`, {
     name: user.username,
     lang: "fr",
     url: link.toString()
diff --git a/source/server/routes/scenes/propfind.ts b/source/server/routes/scenes/propfind.ts
index 407e806d..d0e655d6 100644
--- a/source/server/routes/scenes/propfind.ts
+++ b/source/server/routes/scenes/propfind.ts
@@ -1,7 +1,7 @@
 import { Request, RequestHandler, Response } from "express";
 import xml from 'xml-js';
 import path from "path";
-import { AppLocals, getHost, getUser } from "../../utils/locals.js";
+import { AppLocals, getHost, getLocals, getUser } from "../../utils/locals.js";
 import Vfs, { FileProps, ItemProps } from "../../vfs/index.js";
 
 interface ElementProps{
@@ -198,7 +198,7 @@ async function getScenes(vfs :Vfs, rootUrl:URL, recurse :number, user_id ?:numbe
 export async function handlePropfind(req :Request, res:Response){
   let u = getUser(req);
   const {scene:scene_name} = req.params;
-  const {vfs} = req.app.locals as AppLocals;
+  const {vfs} = getLocals(req);
   let recurse = parseInt(req.get("Depth")??"-1");
   if(!Number.isSafeInteger(recurse)) throw new Error("Invalid Depth header : "+req.get("Depth"));
   
diff --git a/source/server/server.ts b/source/server/server.ts
index a99f968d..4be0de83 100644
--- a/source/server/server.ts
+++ b/source/server/server.ts
@@ -48,6 +48,7 @@ export default async function createServer(config = defaultConfig) :Promise<expr
     fileDir: config.files_dir,
     vfs,
     templates,
+    config,
   }) as AppLocals;
 
   app.use(cookieSession({
diff --git a/source/server/tests-common.ts b/source/server/tests-common.ts
index 50ebd5c8..6b7eed00 100644
--- a/source/server/tests-common.ts
+++ b/source/server/tests-common.ts
@@ -7,7 +7,7 @@ import chaiAsPromised from "chai-as-promised";
 //@ts-ignore
 import sourceMaps from "source-map-support";
 import { AppLocals } from "./utils/locals.js";
-import { parse } from "./utils/config.js";
+import { Config, parse } from "./utils/config.js";
 sourceMaps.install();
 
 chai.use(chaiAsPromised);
@@ -17,7 +17,7 @@ process.env["TEST"] ??= "true";
 declare global{
   var dataStream:(src ?:Array<Buffer|string>)=>AsyncGenerator<Buffer, void, unknown>;
   var expect :typeof chai["expect"];
-  var createIntegrationContext :(c:Mocha.Context)=>Promise<AppLocals>;
+  var createIntegrationContext :(c:Mocha.Context, config_override ?:Partial<Config>)=>Promise<AppLocals>;
   var cleanIntegrationContext :(c:Mocha.Context)=>Promise<void>;
 }
 
@@ -30,11 +30,17 @@ global.dataStream = async function* (src :Array<Buffer|string> =["foo", "\n"]){
   }
 }
 
-global.createIntegrationContext = async function(c :Mocha.Context){
+global.createIntegrationContext = async function(c :Mocha.Context, config_override :Partial<Config>={}){
   let {default:createServer} = await import("./server.js");
   let titleSlug = c.currentTest?.title.replace(/[^\w]/g, "_") ?? `eThesaurus_integration_test`;
   c.dir = await fs.mkdtemp(path.join(tmpdir(), titleSlug));
-  c.config = parse({ROOT_DIR: c.dir, CLEAN_DATABASE: "false", VERBOSE: "false", HOT_RELOAD: "false"});
+  c.config = Object.assign(
+    parse({ //Common options
+    ROOT_DIR: c.dir, CLEAN_DATABASE: "false", VERBOSE: "false", HOT_RELOAD: "false",
+    }),
+    //Options we might want to customize
+    config_override
+  );
   c.server = await createServer( c.config );
   return c.server.locals;
 }
diff --git a/source/server/utils/config.ts b/source/server/utils/config.ts
index ef0e96e8..4f18eb69 100644
--- a/source/server/utils/config.ts
+++ b/source/server/utils/config.ts
@@ -25,7 +25,7 @@ const values = {
 
 type Key = keyof typeof values;
 type ValueType<T extends Key> = ReturnType<typeof values[T][1]>;
-type Config = {
+export type Config = {
   [T in Key]: typeof values[T][0] extends BuildKey<T>? ReturnType<typeof values[T][0]> : ValueType<T>;
 }
 
@@ -51,6 +51,9 @@ function toBool(s:string):boolean{
   return !(!s || s.toLowerCase() === "false" || s == "0");
 }
 
+/**
+ * Parses a set of environment variables into a configuration object
+ */
 export function parse(env :NodeJS.ProcessEnv = process.env):Config{
   let c :Partial<Config>  = {};
   for(let [key, value] of Object.entries(values)){
diff --git a/source/server/utils/locals.ts b/source/server/utils/locals.ts
index cf0d0350..484c35ec 100644
--- a/source/server/utils/locals.ts
+++ b/source/server/utils/locals.ts
@@ -6,6 +6,7 @@ import UserManager, { AccessType, AccessTypes } from "../auth/UserManager.js";
 import Vfs, { GetFileParams } from "../vfs/index.js";
 import { BadRequestError, ForbiddenError, HTTPError, InternalError, NotFoundError, UnauthorizedError } from "./errors.js";
 import Templates from "./templates.js";
+import { Config } from "./config.js";
 
 export interface AppLocals extends Record<string, any>{
   port :number;
@@ -13,20 +14,25 @@ export interface AppLocals extends Record<string, any>{
   userManager :UserManager;
   vfs :Vfs;
   templates :Templates;
+  config: Config;
+}
+
+export function getLocals(req :Request){
+  return req.app.locals as AppLocals;
 }
 
 /**
  * @throws {InternalError} if app.locals.userManager is not defined for this request
  */
 export function getUserManager(req :Request) :UserManager {
-  let userManager :UserManager = (req.app.locals as AppLocals).userManager;
+  let userManager :UserManager = getLocals(req).userManager;
   //istanbul ignore if
   if(!userManager) throw new InternalError("Badly configured app : userManager is not defined in app.locals");
   return userManager
 }
 
 export function getFileDir(req :Request) :string{
-  let fileDir = (req.app.locals as AppLocals).fileDir;
+  let fileDir = getLocals(req).fileDir;
   if(!fileDir) throw new InternalError("Badly configured app : fileDir is not a valid string");
   return fileDir;
 }
@@ -145,7 +151,7 @@ export function getFileParams(req :Request):GetFileParams{
 }
 
 export function getVfs(req :Request){
-  let vfs :Vfs = (req.app.locals as AppLocals).vfs;
+  let vfs :Vfs = getLocals(req).vfs;
   //istanbul ignore if
   if(!vfs) throw new InternalError("Badly configured app : vfs is not defined in app.locals");
   return vfs;