You can engage in an activity incidental, independent or salaried, and keep your unemployment benfit if you filled 4 conditions:
-You must have already exercised this ancillary activity for at least 3 months during the period of occupation as employed preceding the application for benefits;
-You must declare this activity at the time of the application for allowances to your paying agency;
-You can't perform this activity between 7 and 18 hours from Monday to Friday;
-You can't exercise an ancillary activity which belongs to certain categories (profession exercising after 18 hours, some work in the sector of construction, catering, insurance, activities of hawkers industry and direct sellers).
If you met these 4 conditions, you can combine your unemployment benefits and revenues for your accessory activity but to a limited extent.
Last idea : It is maybe the occasion to think about a personnal project and maybe become your own boss !