diff --git a/app/src/types/form.ts b/app/src/types/form.ts
index f28ad2d8..bf5f39f5 100644
--- a/app/src/types/form.ts
+++ b/app/src/types/form.ts
@@ -259,7 +259,7 @@ export type FormField<
   link?:
     | { text: string; name: RouteLocationRaw }
     | { text: string; href: string }
-  rules?: FormFieldRules<MV> | ComputedRef<FormFieldRules<MV>>
+  rules?: FormFieldRules<MV>
   prepend?: string
   readonly?: false
 }
@@ -270,7 +270,7 @@ export type FormFieldReadonly<
   label: string
   cols?: Cols
   readonly: true
-  rules: undefined
+  rules?: undefined
 }
 
 export type FormFieldDisplay<
@@ -281,7 +281,7 @@ export type FormFieldDisplay<
   visible?: boolean | ComputedRef<boolean>
   hr?: boolean
   readonly?: true
-  rules: undefined
+  rules?: undefined
 }
 
 export type FormFieldProps<
@@ -293,7 +293,7 @@ export type FormFieldProps<
 export type FormFieldReadonlyProps<
   C extends AnyWritableComponents,
   MV extends any,
-> = Omit<FormFieldReadonly<C>, 'hr' | 'visible' | 'readonly'> & {
+> = Omit<FormFieldReadonly<C>, 'hr' | 'visible' | 'readonly' | 'rules'> & {
   modelValue?: MV
 }
 
diff --git a/app/src/views/LoginView.vue b/app/src/views/LoginView.vue
index bd212679..28078841 100644
--- a/app/src/views/LoginView.vue
+++ b/app/src/views/LoginView.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { reactive, ref } from 'vue'
+import { ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useRouter, type LocationQueryValue } from 'vue-router'
 
@@ -26,12 +26,12 @@ const form = ref({
   username: '',
   password: '',
 })
-const fields = reactive({
+const fields = {
   username: {
     component: 'InputItem',
     label: t('user_username'),
     rules: { required, alphalownumdot_ },
-    props: {
+    cProps: {
       id: 'username',
       autocomplete: 'username',
     },
@@ -41,13 +41,13 @@ const fields = reactive({
     component: 'InputItem',
     label: t('password'),
     rules: { required, passwordLenght: minLength(4) },
-    props: {
+    cProps: {
       id: 'password',
       type: 'password',
       autocomplete: 'current-password',
     },
   } satisfies FieldProps<'InputItem', Form['password']>,
-} satisfies FormFieldDict<Form>)
+} satisfies FormFieldDict<Form>
 
 const { v, onSubmit } = useForm(form, fields)
 
diff --git a/app/src/views/PostInstall.vue b/app/src/views/PostInstall.vue
index 391ed66c..89307447 100644
--- a/app/src/views/PostInstall.vue
+++ b/app/src/views/PostInstall.vue
@@ -6,7 +6,6 @@ import api from '@/api'
 import { APIBadRequestError } from '@/api/errors'
 import { useForm } from '@/composables/form'
 import { useAutoModal } from '@/composables/useAutoModal'
-import { asUnreffed } from '@/helpers/commons'
 import {
   alphalownumdot_,
   minLength,
@@ -26,7 +25,7 @@ type Steps = 'start' | 'domain' | 'user' | 'rootfsspace-error' | 'login'
 const step = ref<Steps>('start')
 const serverError = ref('')
 const domain = ref('')
-const dyndns_recovery_password = ref('')
+const dyndns_recovery_password = ref<string | undefined>()
 
 type Form = typeof form.value
 const form = ref({
@@ -35,25 +34,25 @@ const form = ref({
   password: '',
   confirmation: '',
 })
-const fields = reactive({
+const fields = {
   // FIXME satisfies FormFieldDict but not for CardForm?
   alert: {
     component: 'ReadOnlyAlertItem',
-    props: { label: t('postinstall.user.first_user_help'), type: 'info' },
+    cProps: { label: t('postinstall.user.first_user_help'), type: 'info' },
   } satisfies FieldProps<'ReadOnlyAlertItem'>,
 
   username: {
     component: 'InputItem',
     label: t('user_username'),
     rules: { required, alphalownumdot_ },
-    props: { id: 'username', placeholder: t('placeholder.username') },
+    cProps: { id: 'username', placeholder: t('placeholder.username') },
   } satisfies FieldProps<'InputItem', Form['username']>,
 
   fullname: {
     component: 'InputItem',
     label: t('user_fullname'),
     rules: { required, name },
-    props: { id: 'fullname', placeholder: t('placeholder.fullname') },
+    cProps: { id: 'fullname', placeholder: t('placeholder.fullname') },
   } satisfies FieldProps<'InputItem', Form['fullname']>,
 
   password: {
@@ -62,21 +61,19 @@ const fields = reactive({
     description: t('good_practices_about_admin_password'),
     descriptionVariant: 'warning',
     rules: { required, passwordLenght: minLength(8) },
-    props: { id: 'password', placeholder: '••••••••', type: 'password' },
+    cProps: { id: 'password', placeholder: '••••••••', type: 'password' },
   } satisfies FieldProps<'InputItem', Form['password']>,
 
-  confirmation: {
+  confirmation: reactive({
     component: 'InputItem',
     label: t('password_confirmation'),
-    rules: asUnreffed(
-      computed(() => ({
-        required,
-        passwordMatch: sameAs(form.value.password),
-      })),
-    ),
-    props: { id: 'confirmation', placeholder: '••••••••', type: 'password' },
-  } satisfies FieldProps<'InputItem', Form['confirmation']>,
-} satisfies FormFieldDict<Form>)
+    rules: computed(() => ({
+      required,
+      passwordMatch: sameAs(form.value.password),
+    })),
+    cProps: { id: 'confirmation', placeholder: '••••••••', type: 'password' },
+  }) satisfies FieldProps<'InputItem', Form['confirmation']>,
+} satisfies FormFieldDict<Form>
 
 const { v, onSubmit, serverErrors } = useForm(form, fields)
 
@@ -85,7 +82,10 @@ function goToStep(step_: Steps) {
   step.value = step_
 }
 
-function setDomain(data: { domain: string; dyndns_recovery_password: string }) {
+function setDomain(data: {
+  domain: string
+  dyndns_recovery_password?: string
+}) {
   domain.value = data.domain
   dyndns_recovery_password.value = data.dyndns_recovery_password
   goToStep('user')
diff --git a/app/src/views/_partials/DomainForm.vue b/app/src/views/_partials/DomainForm.vue
index 86e54b38..965b39f7 100644
--- a/app/src/views/_partials/DomainForm.vue
+++ b/app/src/views/_partials/DomainForm.vue
@@ -4,7 +4,6 @@ import { useI18n } from 'vue-i18n'
 
 import { useDomains } from '@/composables/data'
 import { useForm } from '@/composables/form'
-import { asUnreffed } from '@/helpers/commons'
 import {
   domain,
   dynDomain,
@@ -12,7 +11,7 @@ import {
   required,
   sameAs,
 } from '@/helpers/validators'
-import { formatForm } from '@/helpers/yunohostArguments'
+import { formatFormValue } from '@/helpers/yunohostArguments'
 import type { AdressModelValue, FieldProps, FormFieldDict } from '@/types/form'
 
 defineOptions({
@@ -31,7 +30,7 @@ const props = withDefaults(
   },
 )
 const emit = defineEmits<{
-  submit: [data: Partial<{ domain: string; dyndns_recovery_password: string }>]
+  submit: [data: { domain: string; dyndns_recovery_password?: string }]
 }>()
 
 const { t } = useI18n()
@@ -63,26 +62,24 @@ const form = ref<Form>({
   dynDomainPasswordConfirmation: '',
   localDomain: { localPart: '', separator: '.', domain: 'local' },
 })
-const fields = reactive({
-  domain: {
+const fields = {
+  domain: reactive({
     component: 'InputItem',
     label: t('domain_name'),
-    rules: asUnreffed(
-      computed(() =>
-        selected.value === 'domain' ? { required, domain } : undefined,
-      ),
-    ),
-    props: {
+    rules: computed(() => {
+      return selected.value === 'domain' ? { required, domain } : undefined
+    }),
+    cProps: {
       id: 'domain',
       placeholder: t('placeholder.domain'),
     },
-  } satisfies FieldProps<'InputItem', Form['domain']>,
+  }) satisfies FieldProps<'InputItem', Form['domain']>,
 
   dynDomain: {
     component: 'AdressItem',
     label: t('domain_name'),
     rules: { localPart: { required, dynDomain } },
-    props: {
+    cProps: {
       id: 'dyn-domain',
       placeholder: t('placeholder.domain').split('.')[0],
       type: 'domain',
@@ -90,51 +87,51 @@ const fields = reactive({
     },
   } satisfies FieldProps<'AdressItem', Form['dynDomain']>,
 
-  dynDomainPassword: {
+  dynDomainPassword: reactive({
     component: 'InputItem',
     label: t('domain.add.dyn_dns_password'),
     description: t('domain.add.dyn_dns_password_desc'),
-    rules: { passwordLenght: minLength(8) },
-    props: {
+    rules: computed(() => {
+      return selected.value === 'dynDomain'
+        ? { required, passwordLenght: minLength(8) }
+        : undefined
+    }),
+    cProps: {
       id: 'dyn-dns-password',
       placeholder: '••••••••',
       type: 'password',
     },
-  } satisfies FieldProps<'InputItem', Form['dynDomainPassword']>,
+  }) satisfies FieldProps<'InputItem', Form['dynDomainPassword']>,
 
-  dynDomainPasswordConfirmation: {
+  dynDomainPasswordConfirmation: reactive({
     component: 'InputItem',
     label: t('password_confirmation'),
-    rules: asUnreffed(
-      computed(() => ({
-        passwordMatch: sameAs(form.value.dynDomainPassword),
-      })),
-    ),
-    props: {
+    rules: computed(() => ({
+      passwordMatch: sameAs(form.value.dynDomainPassword),
+    })),
+    cProps: {
       id: 'dyn-dns-password-confirmation',
       placeholder: '••••••••',
       type: 'password',
     },
-  } satisfies FieldProps<'InputItem', Form['dynDomainPasswordConfirmation']>,
+  }) satisfies FieldProps<'InputItem', Form['dynDomainPasswordConfirmation']>,
 
-  localDomain: {
+  localDomain: reactive({
     component: 'AdressItem',
     label: t('domain_name'),
-    rules: asUnreffed(
-      computed(() =>
-        selected.value === 'localDomain'
-          ? { localPart: { required, dynDomain } }
-          : undefined,
-      ),
+    rules: computed(() =>
+      selected.value === 'localDomain'
+        ? { localPart: { required, dynDomain } }
+        : undefined,
     ),
-    props: {
+    cProps: {
       id: 'dyn-domain',
       placeholder: t('placeholder.domain').split('.')[0],
       type: 'domain',
       choices: ['local', 'test'],
     },
-  } satisfies FieldProps<'AdressItem', Form['localDomain']>,
-} satisfies FormFieldDict<Form>)
+  }) satisfies FieldProps<'AdressItem', Form['localDomain']>,
+} satisfies FormFieldDict<Form>
 
 const { v, onSubmit, serverErrors } = useForm(form, fields)
 
@@ -168,16 +165,13 @@ const localDomainIsVisible = computed(() => {
 const onDomainAdd = onSubmit(async () => {
   const domainType = selected.value
   if (!domainType) return
+  const domain = await formatFormValue(form.value[domainType])
 
-  const data = await formatForm(
-    {
-      domain: form.value[domainType],
-      dyndns_recovery_password:
-        domainType === 'dynDomain' ? form.value.dynDomainPassword : '',
-    },
-    { removeEmpty: true },
-  )
-  emit('submit', data)
+  emit('submit', {
+    domain,
+    dyndns_recovery_password:
+      domainType === 'dynDomain' ? form.value.dynDomainPassword : undefined,
+  })
 })
 </script>
 
@@ -214,7 +208,7 @@ const onDomainAdd = onSubmit(async () => {
       <FormField
         v-bind="fields.domain"
         v-model="form.domain"
-        :validation="v.domain"
+        :validation="v.form.domain"
       />
     </BCollapse>
 
@@ -242,7 +236,7 @@ const onDomainAdd = onSubmit(async () => {
         :key="key"
         v-bind="fields[key]"
         v-model="form[key]"
-        :validation="v[key]"
+        :validation="v.form[key]"
       />
     </BCollapse>
 
@@ -272,7 +266,7 @@ const onDomainAdd = onSubmit(async () => {
       <FormField
         v-bind="fields.localDomain"
         v-model="form.localDomain"
-        :validation="v.localDomain"
+        :validation="v.form.localDomain"
       />
     </BCollapse>
   </CardForm>
diff --git a/app/src/views/group/GroupCreate.vue b/app/src/views/group/GroupCreate.vue
index 86d9b8b2..60e0ea43 100644
--- a/app/src/views/group/GroupCreate.vue
+++ b/app/src/views/group/GroupCreate.vue
@@ -18,7 +18,7 @@ const fields = {
     label: t('group_name'),
     description: t('group_format_name_help'),
     rules: { required, alphalownumdot_ },
-    props: {
+    cProps: {
       id: 'groupname',
       placeholder: t('placeholder.groupname'),
     },
diff --git a/app/src/views/tool/ToolFirewall.vue b/app/src/views/tool/ToolFirewall.vue
index ddbdf69c..c435ff31 100644
--- a/app/src/views/tool/ToolFirewall.vue
+++ b/app/src/views/tool/ToolFirewall.vue
@@ -35,7 +35,7 @@ const fields = {
     component: 'SelectItem',
     label: t('action'),
     rules: { required },
-    props: {
+    cProps: {
       id: 'input-action',
       choices: [
         { value: 'allow', text: t('open') },
@@ -49,7 +49,7 @@ const fields = {
     component: 'InputItem',
     label: t('port'),
     rules: { number: required, integer, between: between(0, 65535) },
-    props: { id: 'input-port', placeholder: '0', type: 'number' },
+    cProps: { id: 'input-port', placeholder: '0', type: 'number' },
   } satisfies FieldProps<'InputItem', Form['action']>,
 
   connection: {
@@ -57,7 +57,7 @@ const fields = {
     component: 'SelectItem',
     label: t('connection'),
     rules: { required },
-    props: {
+    cProps: {
       id: 'input-connection',
       choices: [
         { value: 'ipv4', text: t('ipv4') },
@@ -71,7 +71,7 @@ const fields = {
     component: 'SelectItem',
     label: t('protocol'),
     rules: { required },
-    props: {
+    cProps: {
       id: 'input-protocol',
       choices: [
         { value: 'TCP', text: t('tcp') },
diff --git a/app/src/views/user/UserCreate.vue b/app/src/views/user/UserCreate.vue
index 706323e7..74e76fab 100644
--- a/app/src/views/user/UserCreate.vue
+++ b/app/src/views/user/UserCreate.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { computed, ref } from 'vue'
+import { computed, reactive, ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useRouter } from 'vue-router'
 
@@ -7,7 +7,6 @@ import api from '@/api'
 import { useDomains, useUsersAndGroups } from '@/composables/data'
 import { useForm } from '@/composables/form'
 import { useInitialQueries } from '@/composables/useInitialQueries'
-import { asUnreffed } from '@/helpers/commons'
 import {
   alphalownumdot_,
   minLength,
@@ -35,39 +34,37 @@ type Form = typeof form.value
 const form = ref({
   username: '',
   fullname: '',
-  domain: '',
+  domain: mainDomain.value,
   password: '',
   confirmation: '',
 })
 const fields = {
-  username: {
+  username: reactive({
     component: 'InputItem',
     label: t('user_username'),
-    rules: asUnreffed(
-      computed(() => ({
-        required,
-        alphalownumdot_,
-        notInUsers: unique(usernames),
-      })),
-    ),
-    props: {
+    rules: computed(() => ({
+      required,
+      alphalownumdot_,
+      notInUsers: unique(usernames),
+    })),
+    cProps: {
       id: 'username',
       placeholder: t('placeholder.username'),
     },
-  } satisfies FieldProps<'InputItem', Form['username']>,
+  }) satisfies FieldProps<'InputItem', Form['username']>,
 
   fullname: {
     component: 'InputItem',
     hr: true,
     label: t('user_fullname'),
     rules: { required, name },
-    props: {
+    cProps: {
       id: 'fullname',
       placeholder: t('placeholder.fullname'),
     },
   } satisfies FieldProps<'InputItem', Form['fullname']>,
 
-  domain: {
+  domain: reactive({
     component: 'SelectItem',
     hr: true,
     id: 'mail',
@@ -75,8 +72,8 @@ const fields = {
     description: t('tip_about_user_email'),
     descriptionVariant: 'info',
     rules: { required },
-    props: { choices: asUnreffed(domainsAsChoices) },
-  } satisfies FieldProps<'SelectItem', Form['domain']>,
+    cProps: { choices: domainsAsChoices },
+  }) satisfies FieldProps<'SelectItem', Form['domain']>,
 
   password: {
     component: 'InputItem',
@@ -84,28 +81,26 @@ const fields = {
     description: t('good_practices_about_user_password'),
     descriptionVariant: 'warning',
     rules: { required, passwordLenght: minLength(8) },
-    props: {
+    cProps: {
       id: 'password',
       placeholder: '••••••••',
       type: 'password',
     },
   } satisfies FieldProps<'InputItem', Form['password']>,
 
-  confirmation: {
+  confirmation: reactive({
     component: 'InputItem',
     label: t('password_confirmation'),
-    rules: asUnreffed(
-      computed(() => ({
-        required,
-        passwordMatch: sameAs(form.value.password),
-      })),
-    ),
-    props: {
+    rules: computed(() => ({
+      required,
+      passwordMatch: sameAs(form.value.password),
+    })),
+    cProps: {
       id: 'confirmation',
       placeholder: '••••••••',
       type: 'password',
     },
-  } satisfies FieldProps<'InputItem', Form['confirmation']>,
+  }) satisfies FieldProps<'InputItem', Form['confirmation']>,
 } satisfies FormFieldDict<Form>
 
 const { v, onSubmit } = useForm(form, fields)
diff --git a/app/src/views/user/UserEdit.vue b/app/src/views/user/UserEdit.vue
index f9b86e43..9fdc2359 100644
--- a/app/src/views/user/UserEdit.vue
+++ b/app/src/views/user/UserEdit.vue
@@ -8,7 +8,7 @@ import type ViewBase from '@/components/globals/ViewBase.vue'
 import { useDomains, useUsersAndGroups } from '@/composables/data'
 import { useArrayRule, useForm } from '@/composables/form'
 import { useInitialQueries } from '@/composables/useInitialQueries'
-import { arrayDiff, asUnreffed } from '@/helpers/commons'
+import { arrayDiff } from '@/helpers/commons'
 import {
   emailForward,
   emailLocalPart,
@@ -58,30 +58,25 @@ const fields = reactive({
   username: {
     component: 'InputItem',
     label: t('user_username'),
-    props: {
-      id: 'username',
-      disabled: true,
-    },
+    cProps: { id: 'username', disabled: true },
   } satisfies FieldProps<'InputItem', Form['username']>,
 
   fullname: {
     component: 'InputItem',
     label: t('user_fullname'),
     rules: { required, nameValidator },
-    props: {
+    cProps: {
       id: 'fullname',
       placeholder: t('placeholder.fullname'),
     },
   } satisfies FieldProps<'InputItem', Form['fullname']>,
 
-  mail: {
+  mail: reactive({
     component: 'AdressItem',
     label: t('user_email'),
-    rules: {
-      localPart: { required, email: emailLocalPart },
-    },
-    props: { id: 'mail', choices: asUnreffed(domainsAsChoices) },
-  } satisfies FieldProps<'AdressItem', Form['mail']>,
+    rules: { localPart: { required, email: emailLocalPart } },
+    cProps: { id: 'mail', choices: domainsAsChoices },
+  }) satisfies FieldProps<'AdressItem', Form['mail']>,
 
   mailbox_quota: {
     append: 'M',
@@ -90,35 +85,34 @@ const fields = reactive({
     description: t('mailbox_quota_description'),
     // example: t('mailbox_quota_example'),
     rules: { integer, minValue: minValue(0) },
-    props: {
+    cProps: {
       id: 'mailbox-quota',
       placeholder: t('mailbox_quota_placeholder'),
     },
   } satisfies FieldProps<'InputItem', Form['mailbox_quota']>,
 
-  mail_aliases: {
+  mail_aliases: reactive({
     component: 'AdressItem',
-    rules: asUnreffed(
-      useArrayRule(() => form.value.mail_aliases, {
-        localPart: { required, email: emailLocalPart },
-      }),
-    ),
-    props: {
+    rules: useArrayRule(() => form.value.mail_aliases, {
+      localPart: { required, email: emailLocalPart },
+    }),
+    cProps: {
       placeholder: t('placeholder.username'),
-      choices: asUnreffed(domainsAsChoices),
+      choices: domainsAsChoices,
     },
-  } satisfies FieldProps<'AdressItem', Form['mail_aliases']>,
+  }) satisfies FieldProps<'AdressItem', Form['mail_aliases']>,
 
-  mail_forward: {
+  mail_forward: reactive({
     component: 'InputItem',
-    rules: asUnreffed(
-      useArrayRule(() => form.value.mail_forward, { required, emailForward }),
-    ),
-    props: {
+    rules: useArrayRule(() => form.value.mail_forward, {
+      required,
+      emailForward,
+    }),
+    cProps: {
       placeholder: t('user_new_forward'),
       type: 'email',
     },
-  } satisfies FieldProps<'InputItem', Form['mail_forward']>,
+  }) satisfies FieldProps<'InputItem', Form['mail_forward']>,
 
   change_password: {
     component: 'InputItem',
@@ -126,7 +120,7 @@ const fields = reactive({
     description: t('good_practices_about_user_password'),
     descriptionVariant: 'warning',
     rules: { passwordLenght: minLength(8) },
-    props: {
+    cProps: {
       id: 'change_password',
       type: 'password',
       placeholder: '••••••••',
@@ -134,19 +128,19 @@ const fields = reactive({
     },
   } satisfies FieldProps<'InputItem', Form['change_password']>,
 
-  confirmation: {
+  confirmation: reactive({
     component: 'InputItem',
     label: t('password_confirmation'),
-    rules: asUnreffed(
-      computed(() => ({ passwordMatch: sameAs(form.value.change_password) })),
-    ),
-    props: {
+    rules: computed(() => ({
+      passwordMatch: sameAs(form.value.change_password),
+    })),
+    cProps: {
       id: 'confirmation',
       type: 'password',
       placeholder: '••••••••',
       autocomplete: 'new-password',
     },
-  } satisfies FieldProps<'InputItem', Form['confirmation']>,
+  }) satisfies FieldProps<'InputItem', Form['confirmation']>,
 } satisfies FormFieldDict<Form>)
 
 const { v, onSubmit } = useForm(form, fields)
diff --git a/app/src/views/user/UserImport.vue b/app/src/views/user/UserImport.vue
index 8bd393d6..c3c410ee 100644
--- a/app/src/views/user/UserImport.vue
+++ b/app/src/views/user/UserImport.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { reactive, ref } from 'vue'
+import { ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useRouter } from 'vue-router'
 
@@ -21,13 +21,13 @@ const form = ref({
   update: false,
   delete: false,
 })
-const fields = reactive({
+const fields = {
   csvfile: {
     component: 'FileItem',
     label: t('users_import_csv_file'),
     description: t('users_import_csv_file_desc'),
     rules: { file: required },
-    props: {
+    cProps: {
       id: 'csvfile',
       accept: 'text/csv',
       placeholder: t('placeholder.file'),
@@ -38,20 +38,16 @@ const fields = reactive({
     label: t('users_import_update'),
     description: t('users_import_update_desc'),
     component: 'CheckboxItem',
-    props: {
-      id: 'update',
-    },
+    cProps: { id: 'update' },
   } satisfies FieldProps<'CheckboxItem', Form['update']>,
 
   delete: {
     component: 'CheckboxItem',
     label: t('users_import_delete'),
     description: t('users_import_delete_desc'),
-    props: {
-      id: 'delete',
-    },
+    cProps: { id: 'delete' },
   } satisfies FieldProps<'CheckboxItem', Form['delete']>,
-} satisfies FormFieldDict<Form>)
+} satisfies FormFieldDict<Form>
 
 const { v, onSubmit } = useForm(form, fields)