Somerville High School students sheltered in place Tuesday and the Central Library was closed briefly as police searched for two youths they believed to be armed.

Public meetings this week look at funding for a safe consumption site for drugs, community preservation priorities, rules about outdoor dining and more.

Attend meetings on rodent control, intersection reconstruction, school building maintenance, affordable housing, Winter Hill and Porter and Davis squares, and more.

In a look ahead at a week of Cambridge and Somerville events there’s the “Solstice: Reflections on Winter Light” light show at Mount Auburn Cemetery and Midwinter Revels “Solstice Celebration,” as well as one-to-one opera performances, readings and poetry, comedy and weird cinema, history and a protest art performance in Harvard Square.

In a look ahead at a week of Cambridge and Somerville events, there’s a talk with Nobel Prize laureate Wole Soyinka, visit from vile comedian Neil Hamburger, naughty flutists, a Peter Valentine memorial, the Cambridge Carnival and a number of smaller, end-of-summer festivals and other cultural events.