> It might be tempting to try to maintain multiple directory structures, making use of hard or soft links into the code base, but this sounds like it might be f

> It might be tempting to try to maintain multiple directory structures, making use of hard or soft links into the code base, but this sounds like it might be fragile, not to mention hard work to maintain. There are a lot of projects organised around automating this maintenance—though they tend to pop in and out of existence, so I'd agree we're not at the state of having a reliable solution that'll be around next year, or next month. TagFS (https://github.com/marook/tagfs https://github.com/marook/tagfs) is the system with which I've been familiar most recently, but it appears to have been dormant for four years.