Astronaut(tm) VistA client installer. Server is installed by yum and apt-get repositories. Instructions here: http://astronautvista.com/astronaut-help/how-to/how-to-install-astronaut-vista-server-and-client
Framework, Application construction set and M(umps) - API
In the MINISYS environment it is possible to create in a few hours very complex business software like invoice programs, bookkeeping programs and many other. The main programming language is M (ISO-M).
Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.
Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
PIP on GT.M is a mature and proven complete FOSS stack for developing transaction processing database applications with superb scalability, transaction throughput & unique functionality for extreme levels of business continuity.