TailorDev is a french startup based in Clermont-Ferrand (Auvergne). Our mission is to develop modern tools to ease scientific collaboration and promote Open Science Data in life sciences research.Open Science pillars are TailorDev’s cultureUnless TailorDev has justifiable reasons (e.g., National Security concerns), every principle of the Open Science initiative should be treated as TailorDev’s credo.Each time TailorDev produces source code that may help other scientists in their everyday work (e.g., software, data analysis, web servers), the code should be made publicly available, allow community contributions, and be clearly accompanied by appropriate licensing information and/or credits.Any data collected by TailorDev that is relevant to the scientific community should be stored in a public repository, also explicitly accompanied by any licensing information and/or credits. TailorDev should pay careful attention to a repository’s terms and conditions before submitting any data. Institutional repositories such as Zenodo are preferred; however, third-party repositories may also be considered, provided that the service maintainer clearly addresses the treatment of stored data in the event that the maintainer’s status was to change (e.g., fusion, acquisition, liquidation).Once research results are ready for publication, TailorDev should submit its manuscript to Open Access journals using an open peer-review process.Users’ privacy is of utmost importanceTailorDev must respect the users’ right to privacy. Data about the users (e.g., use patterns, location, or any other metadata) should never be sold or given away without explicit informed consent from the users. Additionally, TailorDev must never publish any analyses containing data not publicly available at the time of publishing.All users should be treated as contributors to TailorDev’s common goods, not as products. Users have a right to know where their data is being stored, how it is being used, and how to have their data removed.Openness & privacy must coexistOpenness and privacy are both key pillars that need to coexist. TailorDev must provide a way for its users to keep their data private until a decision has been made to release their content. The sharing of information should be incentivized, never forced.Transparency & ethics firstTailorDev must always value and exhibit transparency in communicating its mission, goals, and decision-making. The more transparent TailorDev, the better. Additionally, TailorDev’s primary motivation must be to contribute towards the common good. When multiple options are available, TailorDev should always choose the most ethical decision/action.Investors must embrace this manifestoIf TailorDev is raising funds, incoming investors must accept all terms stated in this Manifesto without any modifications. To prevent corruption of TailorDev’s values, TailorDev statuses deposited to the administration of the country of affiliation should refer to this Manifesto.