The admin panel has a per-workspace Feature Flags tab that can toggle
any key in `FeatureFlagKey`, but it was hidden unless `NODE_ENV` was
`development` or billing was enabled:
```ts
canManageFeatureFlags:
this.twentyConfigService.get('NODE_ENV') === NodeEnvironment.DEVELOPMENT || isBillingEnabled,
```
Preview apps run `NODE_ENV=production` with billing off, so the tab
disappears and there is no way to flip a flag on a `trycloudflare.com`
app short of editing `core.featureFlag` by hand.
This is purely a client-side gate. `updateWorkspaceFeatureFlag` is
guarded server-side by `AdminPanelGuard` (`canAccessFullAdminPanel`) and
has no billing or cloud check, so unhiding the tab does not widen what
the server accepts. The gate has to be coarse because `/client-config`
is a public unauthenticated endpoint and cannot carry per-user state,
which is presumably why it ended up keyed on `NODE_ENV`/billing.
## Changes
- New `IS_FEATURE_FLAG_MANAGEMENT_ENABLED` config variable
(`ADVANCED_SETTINGS`), defaulting to `false`.
- `canManageFeatureFlags` now also honours it. Development mode and
billing-enabled instances behave exactly as before.
## Notes
- Deliberately not added to `docker-compose.yml` or `.env.example`, and
not documented in `feature-flags.mdx`. Anyone who needs it can set the
env var directly.
- `twentyhq/ci-public#3` sets it for preview apps by patching the
variable into the server service and the generated `.env`, so it does
not depend on the compose file carrying the entry.
- The seeded dev users already have `canAccessFullAdminPanel: true`, and
on a non-seeded instance the first user to sign up is granted it, so the
tab is reachable once the variable is on.
## Test
`client-config.service.spec.ts` covers the new variable unlocking
management in production with billing off, alongside the existing cases
for development mode, billing enabled, and both off.
---
_Generated by [Claude
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Félix Malfait
55707868cd
