I don't have much experience, but I have one suggestion from my experience.
Train the most common weakest skill.
Real example: a set of experienced full stack web developers got a full day workshop, on premise for Linux basic administration.
Devs are not Sysadmins, either not all the devs were using Linux on their workstations, nevertheless, when needed, they had to handle test/production linux environments. And because ppl are afraid of the unknown, some were reluctant to fix stuff (on call), waste time writing own tools (instead of using the bash ones), make mistakes ...and so on.
Not being a core-skill, devs will not "waste" time on it, so it could remain the "weakest skill" for a long time.
Other (real) examples: automatic testing, cloud technologies, functional programming basics (could do wonders in OOP projects, with specific use cases).
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I don't have much experience, but I have one suggestion from my experience.
Train the most common weakest skill.
Real example: a set of experienced full stack web developers got a full day workshop, on premise for Linux basic administration.
Devs are not Sysadmins, either not all the devs were using Linux on their workstations, nevertheless, when needed, they had to handle test/production linux environments. And because ppl are afraid of the unknown, some were reluctant to fix stuff (on call), waste time writing own tools (instead of using the bash ones), make mistakes ...and so on.
Not being a core-skill, devs will not "waste" time on it, so it could remain the "weakest skill" for a long time.
Other (real) examples: automatic testing, cloud technologies, functional programming basics (could do wonders in OOP projects, with specific use cases).