Shelly 2.5 best wiring diagram for 2 on-off switches?

Hello, I’m new to Shelly (but amazed at the possibilites) - I’m renovating my house in the uk and have asked an electrician to install a few in my house. However, electricians aren’t so familiar

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Shelly support group (English Version), # From yesterday I receive many questions regarding Shelly1L and wiring in 2-way installation without neutral

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