Twitter’s ongoing, long-term efforts to make conversations easier to follow and engage with on its platform is getting a boost with the company’s latest acquihire. The company has picked up the team behind Lightwell, a startup that had built a set of developer tools to build interactive, narrative apps, for an undisclosed sum. Lightwell’s founder and CEO, Suzanne Xie, is becoming a director of product leading Twitter’s Conversations initiative, with the rest of her small four-person team joining her on the conversations project. (Sidenote: Sara Haider, who had been leading the charge on rethinking the design of Conversations on Twitter, most recently through the release of twttr, Twitter’s newish prototyping app, announced that she would be moving on to a new project at the company after a short break.