diff --git a/server/lib/prosody/config.ts b/server/lib/prosody/config.ts
index e6c21ffa..dde67d7c 100644
--- a/server/lib/prosody/config.ts
+++ b/server/lib/prosody/config.ts
@@ -1,8 +1,8 @@
 import * as fs from 'fs'
 import * as path from 'path'
 import { pluginName, getBaseRouter } from '../helpers'
-
-type LogMode = 'debug' | 'info'
+import { ProsodyFilePaths } from './config/paths'
+import { ProsodyConfigContent } from './config/content'
 
 async function getWorkingDir ({ peertubeHelpers, storageManager }: RegisterServerOptions): Promise<string> {
   const logger = peertubeHelpers.logger
@@ -62,15 +62,6 @@ async function ensureWorkingDir (options: RegisterServerOptions): Promise<string
   return dir
 }
 
-interface ProsodyFilePaths {
-  dir: string
-  pid: string
-  error: string
-  log: string
-  config: string
-  data: string
-  modules: string
-}
 async function getProsodyFilePaths (options: RegisterServerOptions): Promise<ProsodyFilePaths> {
   const logger = options.peertubeHelpers.logger
   logger.debug('Calling getProsodyFilePaths')
@@ -87,14 +78,6 @@ async function getProsodyFilePaths (options: RegisterServerOptions): Promise<Pro
   }
 }
 
-interface ProsodyModuleConfig {
-  module: string
-  options: Array<{
-    name: string
-    value: string
-  }>
-}
-
 interface ProsodyConfig {
   content: string
   paths: ProsodyFilePaths
@@ -110,111 +93,17 @@ async function getProsodyConfig (options: RegisterServerOptions): Promise<Prosod
   }
   const peertubeDomain = 'localhost'
   const paths = await getProsodyFilePaths(options)
-  const logMode: LogMode = process.env.NODE_ENV === 'test' ? 'debug' : 'info'
 
-  const mucModules: ProsodyModuleConfig[] = []
+  const roomApiUrl = options.peertubeHelpers.config.getWebserverUrl() +
+    getBaseRouter() +
+    'api/room?{room.jid|jid_node}'
 
-  mucModules.push({
-    module: 'muc_http_defaults',
-    options: [
-      {
-        name: 'muc_create_api_url',
-        value: options.peertubeHelpers.config.getWebserverUrl() + getBaseRouter() + 'api/room'
-      }
-    ]
-  })
-
-  const mucModulesEnabled: string = mucModules.map(m => '    "' + m.module + '";').join('\n')
-  const mucModulesOptions: string = mucModules.map(m => {
-    return m.options.map(o => {
-      return '  ' + o.name + ' = "' + o.value + '"'
-    }).join('\n')
-  }).join('\n')
-
-  const content = `
-
-daemonize = false
-pidfile = "${paths.pid}"
-plugin_paths = { "${paths.modules}" }
-data_path = "${paths.data}"
-interfaces = { "127.0.0.1" }
-c2s_ports = { }
-c2s_interfaces = { "127.0.0.1" }
-s2s_ports = { }
-s2s_interfaces = { "127.0.0.1" }
-http_ports = { "${port}" }
-http_interfaces = { "127.0.0.1" }
-https_ports = { }
-https_interfaces = { "127.0.0.1" }
-
-admins = { }
-
-modules_enabled = {
-  "roster"; -- Allow users to have a roster. Recommended ;)
-  "saslauth"; -- Authentication for clients and servers. Recommended if you want to log in.
-  "version"; -- Replies to server version requests
-  "uptime"; -- Report how long server has been running
-  "ping"; -- Replies to XMPP pings with pongs
-
-  "bosh"; -- Enable BOSH clients, aka "Jabber over HTTP"
-
-  "posix"; -- POSIX functionality, sends server to background, enables syslog, etc.
-}
-modules_disabled = {
-    -- "offline"; -- Store offline messages
-    -- "c2s"; -- Handle client connections
-    "s2s"; -- Handle server-to-server connections
-}
-
-allow_registration = false
-
-c2s_require_encryption = false
-
-archive_expires_after = "1w" -- Remove archived messages after 1 week
-
-log = {
-  -- Log files (change 'info' to 'debug' for debug logs):
-  ${logMode} = "${paths.log}";
-  error = "${paths.error}";
-  -- Syslog:
-  -- { levels = { "error" }; to = "syslog";  };
-}
-
-cross_domain_bosh = false
-consider_bosh_secure = true
-cross_domain_websocket = false
-consider_websocket_secure = true
-
-VirtualHost "localhost"
-  trusted_proxies = { "127.0.0.1", "::1" }
-
-  authentication = "anonymous"
-  allow_anonymous_s2s = false
-  modules_enabled = {
-    "http";
-    "bosh";
-    "ping";
-  }
-  http_host = "${peertubeDomain}"
-  http_external_url = "http://${peertubeDomain}"
-
-Component "room.localhost" "muc"
-  restrict_room_creation = "local"
-  modules_enabled = {
-${mucModulesEnabled}
-  }
-  muc_room_locking = false
-  muc_tombstones = false
-  muc_room_default_language = "en"
-  muc_room_default_public = true
-  muc_room_default_persistent = false
-  muc_room_default_members_only = false
-  muc_room_default_moderated = false
-  muc_room_default_public_jids = false
-  muc_room_default_change_subject = false
-  muc_room_default_history_length = 20
-${mucModulesOptions}
-`
+  const config = new ProsodyConfigContent(paths)
+  config.usePeertubeBosh(peertubeDomain, port)
+  config.useMucHttpDefault(roomApiUrl)
+  config.setArchive('1w') // Remove archived messages after 1 week
+  config.setLog(process.env.NODE_ENV === 'test' ? 'debug' : 'info')
+  const content = config.write()
 
   return {
     content,
diff --git a/server/lib/prosody/config/content.ts b/server/lib/prosody/config/content.ts
new file mode 100644
index 00000000..285df417
--- /dev/null
+++ b/server/lib/prosody/config/content.ts
@@ -0,0 +1,219 @@
+import type { ProsodyFilePaths } from './paths'
+
+type ConfigEntryValue = boolean | number | string | ConfigEntryValue[]
+
+interface ConfigEntries {[keys: string]: ConfigEntryValue}
+
+function writeValue (value: ConfigEntryValue): string {
+  if (typeof value === 'boolean') {
+    return value.toString() + ';\n'
+  }
+  if (typeof value === 'string') {
+    return '"' + value.replace(/"/g, '\\"') + '"' + ';\n'
+  }
+  if (typeof value === 'number') {
+    return value.toString() + ';\n'
+  }
+  if (Array.isArray(value)) {
+    let s = '{\n'
+    for (let i = 0; i < value.length; i++) {
+      s += '  ' + writeValue(value[i])
+    }
+    s += '};\n'
+    return s
+  }
+  throw new Error(`Don't know how to handle this value: ${value as string}`)
+}
+
+abstract class ProsodyConfigBlock {
+  entries: ConfigEntries
+  prefix: string
+
+  constructor (prefix: string) {
+    this.prefix = prefix
+    this.entries = {}
+  }
+
+  set (name: string, value: ConfigEntryValue): void {
+    this.entries[name] = value
+  }
+
+  add (name: string, value: ConfigEntryValue): void {
+    if (!(name in this.entries)) {
+      this.entries[name] = []
+    }
+    let entry = this.entries[name]
+    if (!Array.isArray(entry)) {
+      entry = [entry]
+    }
+    entry.push(value)
+    this.entries[name] = entry
+  }
+
+  write (): string {
+    let content = ''
+    // Using Reflect.ownKeys to keep order
+    Reflect.ownKeys(this.entries).forEach(key => {
+      content += this.prefix + (key as string) + ' = ' + writeValue(this.entries[key as string])
+    })
+    return content
+  }
+}
+
+class ProsodyConfigGlobal extends ProsodyConfigBlock {
+  constructor () {
+    super('')
+  }
+}
+
+class ProsodyConfigVirtualHost extends ProsodyConfigBlock {
+  name: string
+
+  constructor (name: string) {
+    super('  ')
+    this.name = name
+  }
+
+  write (): string {
+    return `VirtualHost "${this.name}"\n` + super.write()
+  }
+}
+
+class ProsodyConfigComponent extends ProsodyConfigBlock {
+  name: string
+  type: string
+
+  constructor (type: string, name: string) {
+    super('  ')
+    this.type = type
+    this.name = name
+  }
+
+  write (): string {
+    return `Component "${this.name}" "${this.type}"\n` + super.write()
+  }
+}
+
+type ProsodyLogLevel = 'debug' | 'info'
+
+class ProsodyConfigContent {
+  paths: ProsodyFilePaths
+  global: ProsodyConfigGlobal
+  anon: ProsodyConfigVirtualHost
+  muc: ProsodyConfigComponent
+  log: string
+
+  constructor (paths: ProsodyFilePaths) {
+    this.paths = paths
+    this.global = new ProsodyConfigGlobal()
+    this.log = ''
+    this.anon = new ProsodyConfigVirtualHost('localhost')
+    this.muc = new ProsodyConfigComponent('muc', 'room.localhost')
+
+    this.global.set('daemonize', false)
+    this.global.set('allow_registration', false)
+    this.global.set('admins', [])
+
+    this.global.set('pidfile', this.paths.pid)
+    this.global.set('plugin_paths', [this.paths.modules])
+    this.global.set('data_path', this.paths.data)
+
+    this.global.set('modules_enabled', [
+      'roster', // Allow users to have a roster. Recommended ;)
+      'saslauth', // Authentication for clients and servers. Recommended if you want to log in.
+      'version', // Replies to server version requests
+      'uptime', // Report how long server has been running
+      'ping', // Replies to XMPP pings with pongs
+      'bosh', // Enable BOSH clients, aka "Jabber over HTTP"
+      'posix' // POSIX functionality, sends server to background, enables syslog, etc.
+    ])
+    this.global.set('modules_disabled', [
+      // 'offline' // Store offline messages
+      // 'c2s' // Handle client connections
+      's2s' // Handle server-to-server connections
+    ])
+
+    this.global.set('cross_domain_bosh', false)
+    this.global.set('consider_bosh_secure', false)
+    this.global.set('cross_domain_websocket', false)
+    this.global.set('consider_websocket_secure', false)
+
+    this.anon.set('authentication', 'anonymous')
+    this.anon.set('modules_enabled', ['ping'])
+
+    this.muc.set('muc_room_locking', false)
+    this.muc.set('muc_tombstones', false)
+    this.muc.set('muc_room_default_language', 'en')
+    this.muc.set('muc_room_default_public', true)
+    this.muc.set('muc_room_default_persistent', false)
+    this.muc.set('muc_room_default_members_only', false)
+    this.muc.set('muc_room_default_moderated', false)
+    this.muc.set('muc_room_default_public_jids', false)
+    this.muc.set('muc_room_default_change_subject', false)
+    this.muc.set('muc_room_default_history_length', 20)
+  }
+
+  usePeertubeBosh (peertubeDomain: string, port: string): void {
+    this.global.set('c2s_require_encryption', false)
+    this.global.set('interfaces', ['127.0.0.1', '::1'])
+    this.global.set('c2s_ports', [])
+    this.global.set('c2s_interfaces', ['127.0.0.1', '::1'])
+    this.global.set('s2s_ports', [])
+    this.global.set('s2s_interfaces', ['127.0.0.1', '::1'])
+    this.global.set('http_ports', [port])
+    this.global.set('http_interfaces', ['127.0.0.1', '::1'])
+    this.global.set('https_ports', [])
+    this.global.set('https_interfaces', ['127.0.0.1', '::1'])
+
+    this.global.set('consider_bosh_secure', true)
+
+    this.anon.set('trusted_proxies', ['127.0.0.1', '::1'])
+    this.anon.set('allow_anonymous_s2s', false)
+    this.anon.add('modules_enabled', 'http')
+    this.anon.add('modules_enabled', 'bosh')
+    this.anon.set('http_host', peertubeDomain)
+    this.anon.set('http_external_url', 'http://' + peertubeDomain)
+
+    this.muc.set('restrict_room_creation', 'local')
+  }
+
+  useMucHttpDefault (url: string, bearer?: string): void {
+    this.muc.add('modules_enabled', 'muc_http_defaults')
+    this.muc.add('muc_create_api_url', url)
+    if (bearer) {
+      this.muc.add('muc_create_api_auth', bearer)
+    }
+  }
+
+  setArchive (duration: string): void {
+    this.global.set('archive_expires_after', duration)
+  }
+
+  setLog (level: ProsodyLogLevel, syslog?: ProsodyLogLevel[]): void {
+    let log = ''
+    log += 'log = {\n'
+    log += '  ' + level + ' = ' + writeValue(this.paths.log)
+    log += '  error = ' + writeValue(this.paths.error)
+    if (syslog) {
+      log += '  { to = "syslog"; levels = ' + writeValue(syslog) + ' };\n'
+    }
+    log += '\n};\n'
+    this.log = log
+  }
+
+  public write (): string {
+    let content = ''
+    content += this.global.write()
+    content += this.log + '\n'
+    content += '\n\n'
+    content += this.anon.write()
+    content += '\n\n'
+    content += this.muc.write()
+    content += '\n\n'
+    return content
+  }
+}
+
+export {
+  ProsodyConfigContent
+}
diff --git a/server/lib/prosody/config/paths.ts b/server/lib/prosody/config/paths.ts
new file mode 100644
index 00000000..8683fddf
--- /dev/null
+++ b/server/lib/prosody/config/paths.ts
@@ -0,0 +1,13 @@
+interface ProsodyFilePaths {
+  dir: string
+  pid: string
+  error: string
+  log: string
+  config: string
+  data: string
+  modules: string
+}
+
+export {
+  ProsodyFilePaths
+}