diff --git a/app/src/components/globals/CardForm.vue b/app/src/components/globals/CardForm.vue
index 057feff6..2f91906d 100644
--- a/app/src/components/globals/CardForm.vue
+++ b/app/src/components/globals/CardForm.vue
@@ -11,6 +11,7 @@ import type {
   AnyDisplayComponents,
   AnyWritableComponents,
   BaseItemComputedProps,
+  ButtonItemProps,
   FormFieldDict,
 } from '@/types/form'
 import { isDisplayComponent, isWritableComponent } from '@/types/form'
@@ -62,9 +63,9 @@ const slots = defineSlots<
   } & {
     [K in KeyOfStr<FFD> as `component:${K}`]?: (
       _: FFD[K]['component'] extends AnyWritableComponents
-        ? FFD[K]['props'] & BaseItemComputedProps<MV[K]>
+        ? FFD[K]['cProps'] & BaseItemComputedProps<MV[K]>
         : FFD[K]['component'] extends AnyDisplayComponents
-          ? FFD[K]['props']
+          ? FFD[K]['cProps']
           : never,
     ) => any
   }
@@ -135,17 +136,17 @@ const Fields = createReusableTemplate<{
         <slot
           v-else-if="isDisplayComponent(field)"
           :name="`component:${k}`"
-          v-bind="field.props"
+          v-bind="field.cProps"
         >
           <Component
             :is="field.component"
             v-if="field.component !== 'ButtonItem'"
-            v-bind="field.props"
+            v-bind="field.cProps"
           />
           <ButtonItem
             v-else
-            v-bind="field.props"
-            @action="emit('action', $event as typeof field.props.id)"
+            v-bind="field.cProps as ButtonItemProps"
+            @action="emit('action', $event as KeyOfStr<FFD>)"
           />
         </slot>
 
@@ -181,12 +182,13 @@ const Fields = createReusableTemplate<{
                   {{ section.name }}
                   <small v-if="section.help">{{ section.help }}</small>
                 </BCardTitle>
-
+                <!-- @vue-ignore-next-line -->
                 <Fields.reuse :fields-props="section.fields" />
               </Component>
             </template>
           </template>
           <template v-else-if="fields">
+            <!-- @vue-ignore-next-line -->
             <Fields.reuse :fields-props="fields" />
           </template>
         </slot>
diff --git a/app/src/components/globals/FormField.vue b/app/src/components/globals/FormField.vue
index cc2867a2..25ea0bc3 100644
--- a/app/src/components/globals/FormField.vue
+++ b/app/src/components/globals/FormField.vue
@@ -14,6 +14,7 @@ import type {
   BaseItemComputedProps,
   FormField,
   FormFieldProps,
+  ItemComponentToItemProps,
 } from '@/types/form'
 
 defineOptions({
@@ -24,6 +25,8 @@ defineOptions({
 const props = withDefaults(defineProps<FormFieldProps<C, MV>>(), {
   append: undefined,
   asInputGroup: false,
+  component: undefined,
+  cProps: undefined,
   description: undefined,
   descriptionVariant: undefined,
   id: undefined,
@@ -43,7 +46,7 @@ defineEmits<{
 
 const slots = defineSlots<{
   default?: (
-    componentProps: FormField<C, MV>['props'] & BaseItemComputedProps<MV>,
+    componentProps: FormField<C, MV>['cProps'] & BaseItemComputedProps<MV>,
   ) => any
   description?: any
 }>()
@@ -86,7 +89,7 @@ const computedAttrs = computed(() => {
 
 const id = computed(() => {
   if (props.id) return props.id
-  const childId = props.props?.id || props.labelFor
+  const childId = props.cProps?.id || props.labelFor
   return childId ? `${childId}-field` : undefined
 })
 
@@ -132,7 +135,7 @@ const [DefineTemplate, ReuseTemplate] = createReusableTemplate<{
     <!-- Make field props and state available as scoped slot data -->
     <slot
       v-bind="{
-        ...props.props,
+        ...(props.cProps ?? ({} as ItemComponentToItemProps[C])),
         ariaDescribedby,
         modelValue: props.modelValue,
         state,
@@ -141,7 +144,7 @@ const [DefineTemplate, ReuseTemplate] = createReusableTemplate<{
     >
       <!-- if no component was passed as slot, render a component from the props -->
       <Component
-        v-bind="props.props"
+        v-bind="props.cProps"
         :is="component"
         v-model="model"
         :aria-describedby="ariaDescribedby"
@@ -156,7 +159,7 @@ const [DefineTemplate, ReuseTemplate] = createReusableTemplate<{
     v-bind="computedAttrs"
     :id="id"
     :label="label"
-    :label-for="labelFor || props.props?.id"
+    :label-for="labelFor || props.cProps?.id"
     :state="state"
   >
     <template #default="{ ariaDescribedby }">
diff --git a/app/src/components/globals/FormFieldMultiple.vue b/app/src/components/globals/FormFieldMultiple.vue
index 921d93ea..bd1b3a2f 100644
--- a/app/src/components/globals/FormFieldMultiple.vue
+++ b/app/src/components/globals/FormFieldMultiple.vue
@@ -13,6 +13,7 @@ import type {
   BaseItemComputedProps,
   FormField,
   FormFieldProps,
+  ItemComponentToItemProps,
 } from '@/types/form'
 
 defineOptions({
@@ -23,13 +24,15 @@ defineOptions({
 const props = withDefaults(
   defineProps<
     FormFieldProps<C, MV> & {
-      defaultValue: () => ArrInnerType<MV>
-      addBtnText: string
+      defaultValue?: () => ArrInnerType<MV>
+      addBtnText?: string
     }
   >(),
   {
     append: undefined,
     asInputGroup: false,
+    component: undefined,
+    cProps: undefined,
     description: undefined,
     descriptionVariant: undefined,
     id: undefined,
@@ -38,6 +41,8 @@ const props = withDefaults(
     link: undefined,
     prepend: undefined,
     rules: undefined,
+    defaultValue: undefined,
+    addBtnText: undefined,
 
     modelValue: undefined,
     validation: undefined,
@@ -50,7 +55,7 @@ const emit = defineEmits<{
 
 const slots = defineSlots<{
   default?: (_: {
-    componentProps: FormField<C, ArrInnerType<MV>>['props'] &
+    componentProps: FormField<C, ArrInnerType<MV>>['cProps'] &
       BaseItemComputedProps<ArrInnerType<MV>>
     index: number
   }) => any
@@ -86,7 +91,7 @@ const computedAttrs = computed(() => {
 
 const id = computed(() => {
   if (props.id) return props.id
-  return props.props?.id ? props.props?.id + '_group' : undefined
+  return props.cProps?.id ? props.cProps?.id + '_group' : undefined
 })
 
 const error = computed(() => {
@@ -101,9 +106,9 @@ const subProps = computed<FormFieldProps<C, ArrInnerType<MV>>[]>(() => {
   return (
     props.modelValue?.map((modelValue: ArrInnerType<MV>, i) => {
       return {
-        props: {
-          ...props.props,
-          id: `${props.props.id}.${i}`,
+        cProps: {
+          ...(props.cProps ?? ({} as ItemComponentToItemProps[C])),
+          id: `${props.cProps?.id}.${i}`,
         },
         validation: props.validation?.[i],
         modelValue,
@@ -138,7 +143,7 @@ const errorMessage = computed(() => {
 })
 
 function addElement() {
-  const value = [...(props?.modelValue || []), props.defaultValue()] as MV
+  const value = [...(props?.modelValue || []), props.defaultValue!()] as MV
   emit('update:modelValue', value)
 
   // FIXME: Focus newly inserted form item
@@ -172,16 +177,25 @@ function updateElement(index: number, newValue: ArrInnerType<MV>) {
         </template>
       </FormField>
 
-      <BButton variant="danger" @click="removeElement(index)">
+      <BButton
+        v-if="defaultValue !== undefined"
+        variant="danger"
+        @click="removeElement(index)"
+      >
         <YIcon :title="$t('delete')" iname="trash-o" />
         <span class="visually-hidden">{{ $t('delete') }}</span>
       </BButton>
     </div>
 
-    <BButton variant="success" @click="addElement()">
-      <YIcon iname="plus" /> {{ $t('user_emailaliases_add') }}
+    <BButton
+      v-if="defaultValue !== undefined"
+      variant="success"
+      @click="addElement()"
+    >
+      <YIcon iname="plus" /> {{ addBtnText ?? $t('add') }}
     </BButton>
 
+    <!-- FIXME is it needed? or more generic error like "errors in this multiple fields" -->
     <template #invalid-feedback>
       <span v-html="errorMessage" />
     </template>
diff --git a/app/src/components/globals/formItems/ButtonItem.vue b/app/src/components/globals/formItems/ButtonItem.vue
index 29efd32d..f104384a 100644
--- a/app/src/components/globals/formItems/ButtonItem.vue
+++ b/app/src/components/globals/formItems/ButtonItem.vue
@@ -4,14 +4,13 @@ import { computed, toValue } from 'vue'
 import type { ButtonItemProps } from '@/types/form'
 
 const props = withDefaults(defineProps<ButtonItemProps>(), {
-  id: undefined,
   enabled: true,
   icon: undefined,
   type: 'success',
 })
 
 const emit = defineEmits<{
-  action: [value: ButtonItemProps['id']]
+  action: [value: string]
 }>()
 
 const icon = computed(() => {
diff --git a/app/src/composables/configPanels.ts b/app/src/composables/configPanels.ts
index 67ce47c5..5b2f1854 100644
--- a/app/src/composables/configPanels.ts
+++ b/app/src/composables/configPanels.ts
@@ -6,7 +6,6 @@ import type {
   WritableComputedRef,
 } from 'vue'
 import { computed, ref, toValue, watch } from 'vue'
-import { useI18n } from 'vue-i18n'
 import { useRouter } from 'vue-router'
 
 import { APIBadRequestError, APIError } from '@/api/errors'
@@ -14,6 +13,7 @@ import { deepSetErrors, useForm, type FormValidation } from '@/composables/form'
 import { isObjectLiteral } from '@/helpers/commons'
 import * as validators from '@/helpers/validators'
 import { formatForm, formatI18nField } from '@/helpers/yunohostArguments'
+import i18n from '@/i18n'
 import type { CustomRoute, KeyOfStr, MergeUnion, Obj } from '@/types/commons'
 import type {
   AnyFormField,
@@ -96,23 +96,24 @@ function formatOption(option: AnyOption, form: Ref<Obj>): AnyFormField {
 
   if (isIn(ANY_DISPLAY_OPTION_TYPE, option)) {
     const component = OPTION_COMPONENT_RESOLVER[option.type]
-    // TODO: could be improved, for simplicity props can be be any display item props
+    // TODO: could be improved, for simplicity cProps can be be any display item props
     // but this is not type safe.
-    const props = {
+    const cProps = {
       label: formatI18nField(option.ask),
       id: option.id,
     } as MergeUnion<AnyDisplayItemProps>
     const field: FormFieldDisplay<typeof component> = {
       component,
       visible,
-      props,
+      cProps,
+      rules: undefined,
     }
 
     if (isIn(['button', 'alert'], option)) {
-      props.type = option.style
-      props.icon = option.icon
+      cProps.type = option.style
+      cProps.icon = option.icon
       if (option.type === 'button') {
-        props.enabled = useExpression(option.enabled, form)
+        cProps.enabled = useExpression(option.enabled, form)
       }
     }
 
@@ -124,42 +125,42 @@ function formatOption(option: AnyOption, form: Ref<Obj>): AnyFormField {
     }
 
     const component = OPTION_COMPONENT_RESOLVER[option.type]
-    // TODO: could be improved, for simplicity props can be be any writable item props
+    // TODO: could be improved, for simplicity cProps can be be any writable item props
     // but this is not type safe.
-    const props = {
+    const cProps = {
       id: option.id,
       placeholder: option.example,
     } as MergeUnion<AnyWritableItemProps>
     const rules: FormField['rules'] = {}
-    const field:
-      | FormField<typeof component>
-      | FormFieldReadonly<typeof component> = {
+    const field: FormField<typeof component> = {
       component,
       label: formatI18nField(option.ask),
-      props,
-      readonly: option.readonly,
-      rules,
+      rules: option.readonly ? undefined : rules,
       visible,
       description: formatI18nField(option.help),
     }
 
     // We don't care about component props in case of readonly
-    if (field.readonly) return field
+    if (option.readonly) {
+      return { ...field, readonly: true } as FormFieldReadonly<typeof component>
+    } else {
+      field.cProps = cProps
+    }
 
-    const { t } = useI18n()
+    const t = i18n.global.t
 
     if (isIn(ANY_INPUT_OPTION_TYPE, option)) {
-      props.type = isIn(['string', 'path'], option) ? 'text' : option.type
+      cProps.type = isIn(['string', 'path'], option) ? 'text' : option.type
       // trim
       // autocomplete
 
       if (option.type === 'password') {
         field.description ??= t('good_practices_about_admin_password')
         rules.passwordLenght = validators.minLength(8)
-        props.placeholder = '••••••••••••'
+        cProps.placeholder = '••••••••••••'
       } else if (isIn(['number', 'range'], option)) {
         rules.numValue = validators.integer
-        props.step = option.step
+        cProps.step = option.step
 
         if (option.min !== undefined) {
           rules.minValue = validators.minValue(option.min)
@@ -169,7 +170,7 @@ function formatOption(option: AnyOption, form: Ref<Obj>): AnyFormField {
         }
       }
     } else if (isIn(['select', 'user', 'domain', 'app', 'group'], option)) {
-      props.choices = isObjectLiteral(option.choices)
+      cProps.choices = isObjectLiteral(option.choices)
         ? Object.entries(option.choices).map(([k, v]) => ({
             text: v,
             value: k,
@@ -182,23 +183,23 @@ function formatOption(option: AnyOption, form: Ref<Obj>): AnyFormField {
         }
       }
     } else if (isIn(['tags', 'tags-select'], option)) {
-      // props.limit = option.limit  // FIXME limit is not defined in core?
-      props.placeholder = option.placeholder
-      props.tagIcon = option.icon
+      // cProps.limit = option.limit  // FIXME limit is not defined in core?
+      cProps.placeholder = option.placeholder
+      cProps.tagIcon = option.icon
 
       if ('tags-select' === option.type) {
-        props.options = option.choices
-        props.auto = true
-        props.itemsName = ''
-        props.label = option.placeholder
+        cProps.options = option.choices
+        cProps.auto = true
+        cProps.itemsName = ''
+        cProps.label = option.placeholder
       }
     } else if ('boolean' === option.type) {
       // FIXME
-      // props.choices = option.choices
+      // cProps.choices = option.choices
     }
 
     if ('file' === option.type) {
-      props.accept = option.accept
+      cProps.accept = option.accept
     }
 
     if ('boolean' !== option.type && option.optional === false) {
@@ -233,6 +234,7 @@ export function formatOptions<MV extends Obj>(
   fields: FormFieldDict<MV>
   form: Ref<MV>
 } {
+  // FIXME handle optional for app install ? or is already handled in core bookworm?
   const form = ref(
     Object.fromEntries(
       options
@@ -373,7 +375,6 @@ function useEvaluation(expression: string, form: MaybeRefOrGetter<Obj>) {
 
   return computed(() => {
     const { exp, ctx } = buildContext(toValue(form))
-
     try {
       return !!evaluate(ctx, exp)
     } catch {
diff --git a/app/src/composables/form.ts b/app/src/composables/form.ts
index 8f9bca4b..d5ee06d6 100644
--- a/app/src/composables/form.ts
+++ b/app/src/composables/form.ts
@@ -1,12 +1,13 @@
+// eslint-disable-next-line vue/prefer-import-from-vue
+import { isFunction } from '@vue/shared'
 import type {
   BaseValidation,
   ServerErrors,
   Validation,
   ValidationArgs,
-  ValidationRuleCollection,
 } from '@vuelidate/core'
 import useVuelidate from '@vuelidate/core'
-import { computedWithControl } from '@vueuse/core'
+import { watchImmediate } from '@vueuse/core'
 import type {
   ComputedRef,
   InjectionKey,
@@ -14,11 +15,11 @@ import type {
   Ref,
   WritableComputedRef,
 } from 'vue'
-import { computed, inject, provide, reactive, toValue } from 'vue'
+import { computed, inject, provide, reactive, ref, toValue } from 'vue'
 
 import { APIBadRequestError, type APIError } from '@/api/errors'
 import type { Obj } from '@/types/commons'
-import type { FormField, FormFieldDict } from '@/types/form'
+import type { FormFieldDict } from '@/types/form'
 
 export const clearServerErrorsSymbol = Symbol() as InjectionKey<
   (key?: string) => void
@@ -57,25 +58,32 @@ export type FormValidation<MV extends Obj> = Validation<
 export function useForm<
   MV extends Obj,
   FFD extends FormFieldDict<MV> = FormFieldDict<MV>,
->(form: Ref<MV> | WritableComputedRef<MV>, fields: MaybeRefOrGetter<FFD>) {
+>(form: Ref<MV> | WritableComputedRef<MV>, fields: FFD | (() => FFD)) {
   const serverErrors = reactive<ServerErrors>({})
-  const validByDefault: ValidationRuleCollection = { true: () => true }
-  const rules = computedWithControl(
-    () => toValue(fields),
-    () => {
-      const fs = toValue(fields)
-      const validations = Object.keys(form.value).map((key: keyof MV) => [
-        key,
-        (fs[key] as FormField).rules ?? validByDefault,
-      ])
-      const rules: ValidationArgs<MV> = Object.fromEntries(validations)
-      return {
-        // create a fake validation rule for global state to be able to add $externalResult errors to it
-        global: { true: () => true },
-        form: rules,
-      }
-    },
-  )
+  const validByDefault = { true: () => true as const }
+  // create a fake validation rule for global state to be able to add $externalResult errors to it
+  const rules = ref({ global: validByDefault, form: {} }) as Ref<{
+    global: { true: () => true }
+    form: ValidationArgs<MV>
+  }>
+  function updateRules(ffd: FFD) {
+    const validations = Object.keys(form.value).map((key: keyof MV) => [
+      key,
+      ffd[key].rules ?? validByDefault,
+    ])
+    const formRules: ValidationArgs<MV> = Object.fromEntries(validations)
+    rules.value = { global: { true: () => true }, form: formRules }
+  }
+  if (isFunction(fields)) {
+    watchImmediate(fields, () => {
+      updateRules(toValue(fields))
+    })
+  } else {
+    watchImmediate(
+      Object.keys(form.value).map((key: keyof MV) => () => fields[key].rules),
+      () => updateRules(fields),
+    )
+  }
 
   const v: Ref<FormValidation<MV>> = useVuelidate(
     rules,
diff --git a/app/src/types/form.ts b/app/src/types/form.ts
index 82c63341..f28ad2d8 100644
--- a/app/src/types/form.ts
+++ b/app/src/types/form.ts
@@ -10,6 +10,7 @@ import { isObjectLiteral } from '@/helpers/commons'
 import type { ArrInnerType, Cols, Obj, StateVariant } from '@/types/commons'
 
 type StateValidation = false | null
+type Choices = string[] | { text: string; value: string }[]
 
 // DISPLAY
 
@@ -20,6 +21,7 @@ type BaseDisplayItemProps = {
 
 export type ButtonItemProps = BaseDisplayItemProps & {
   // FIXME compute enabled JSExpression
+  id: string
   enabled?: boolean | ComputedRef<boolean>
   icon?: string
   type?: StateVariant
@@ -41,6 +43,7 @@ type BaseWritableItemProps = {
   name?: string
   placeholder?: string
   touchKey?: string
+  disabled?: boolean
 }
 
 export type BaseItemComputedProps<MV extends any = any> = {
@@ -51,7 +54,7 @@ export type BaseItemComputedProps<MV extends any = any> = {
 }
 
 export type AdressItemProps = BaseWritableItemProps & {
-  choices: string[]
+  choices: Choices
   type?: 'domain' | 'email'
 }
 export type AdressModelValue = {
@@ -64,7 +67,7 @@ export type CheckboxItemProps = BaseWritableItemProps & {
   label?: string
   labels?: { true: string; false: string }
   // FIXME unused?
-  // choices: string[]
+  // choices: Choices
 }
 
 export type FileItemProps = BaseWritableItemProps & {
@@ -89,7 +92,7 @@ export type InputItemProps = BaseWritableItemProps & {
     | 'current-password'
     | 'url'
   // pattern?: object
-  // choices?: string[] FIXME rm ?
+  // choices?: Choices FIXME rm ?
   step?: number
   trim?: boolean
   type?:
@@ -107,7 +110,7 @@ export type InputItemProps = BaseWritableItemProps & {
 }
 
 export type SelectItemProps = BaseWritableItemProps & {
-  choices: string[] | { text: string; value: string }[]
+  choices: Choices
 }
 
 export type TagsItemProps = BaseWritableItemProps & {
@@ -205,7 +208,7 @@ export function isNonWritableComponent(
   return isDisplayComponent(field) || !!field.readonly
 }
 
-type ItemComponentToItemProps = {
+export type ItemComponentToItemProps = {
   // DISPLAY
   ButtonItem: ButtonItemProps
   DisplayTextItem: DisplayTextItemProps
@@ -234,11 +237,11 @@ type BaseFormFieldComputedProps<MV extends any = any> = {
 }
 
 type BaseFormField<C extends AnyItemComponents> = {
-  component: C
+  component?: C
+  cProps?: ItemComponentToItemProps[C]
   hr?: boolean
   id?: string
   label?: string
-  props?: ItemComponentToItemProps[C]
   readonly?: boolean
   visible?: boolean | ComputedRef<boolean>
 }
@@ -249,14 +252,14 @@ export type FormField<
 > = BaseFormField<C> & {
   append?: string
   asInputGroup?: boolean
+  cProps?: ItemComponentToItemProps[C]
   description?: string
   descriptionVariant?: StateVariant
   labelFor?: string
   link?:
     | { text: string; name: RouteLocationRaw }
     | { text: string; href: string }
-  props: ItemComponentToItemProps[C]
-  rules?: FormFieldRules<MV>
+  rules?: FormFieldRules<MV> | ComputedRef<FormFieldRules<MV>>
   prepend?: string
   readonly?: false
 }
@@ -267,16 +270,18 @@ export type FormFieldReadonly<
   label: string
   cols?: Cols
   readonly: true
+  rules: undefined
 }
 
 export type FormFieldDisplay<
   C extends AnyDisplayComponents = AnyDisplayComponents,
 > = {
-  component: C
-  props: ItemComponentToItemProps[C]
+  component?: C
+  cProps?: ItemComponentToItemProps[C]
   visible?: boolean | ComputedRef<boolean>
   hr?: boolean
   readonly?: true
+  rules: undefined
 }
 
 export type FormFieldProps<
@@ -305,12 +310,14 @@ export type FormFieldDict<T extends Obj = Obj> = {
 
 // Type to check if object satisfies specified Field and Item
 export type FieldProps<
-  C extends AnyItemComponents = 'InputItem',
+  C extends AnyItemComponents = AnyItemComponents,
   MV extends any = never,
 > = C extends AnyWritableComponents
-  ? FormField<C, MV> | FormFieldReadonly<C>
+  ?
+      | (FormField<C, MV> & { component: C })
+      | (FormFieldReadonly<C> & { component: C })
   : C extends AnyDisplayComponents
-    ? FormFieldDisplay<C>
+    ? FormFieldDisplay<C> & { component: C }
     : never
 
 export function isFileModelValue(value: any): value is FileModelValue {