IBM still invests in it's mainframes, and you can also run Linux on VMs, if you wanted to start to transition over some things. You can run an official IBM emu

IBM still invests in it's mainframes, and you can also run Linux on VMs, if you wanted to start to transition over some things. You can run an official IBM emulator for only $5,980.00 per user per year[0]. I've never done it, but this[1] guy did. Or you can run the open source Hercules[2] emulator, but this is limited to Linux, or older IBM operating systems. [0] https://www.ibm.com/products/z-development-test-environment https://www.ibm.com/products/z-development-test-environment [1] https://colinpaice.blog/2020/06/29/getting-z-os-installed-on-my-ubuntu-laptop/ https://colinpaice.blog/2020/06/29/getting-z-os-installed-on... [2] http://www.hercules-390.org/ http://www.hercules-390.org/