What exactly a future with Donald Trump as president looks like, nobody really knows — especially when it comes to a proposed "Muslim registry."

Trump has said repeatedly and recently that he wants to build a registry, but what information will be in it or even where the data could be stored isn't as easy as building a quick spreadsheet.

The controversial plan will need the help of people in the technology industry, but a growing number of employees are saying that they won't be a part of it. That includes Winnipeg engineer Ka-Ping Yee who works at the company Wave in San Francisco.

"The issues we're talking about are human rights issues. They're not just Muslim issues. They're not just American issues," Yee said on CBC's As It Happens.

"As a member of the tech community … I think we have a responsibility here and sort of as a member of the community of humanity, we have a responsibility."

Ka-Ping Yee, an engineer from Winnipeg, has signed an online pledge saying he will not contribute to building a Muslim registry. (Twitter) More than 2,200 people had signed the online pledge as of Sunday afternoon. It states that employees of tech organizations – engineers, designers, business executives and others who manage data — will refuse to build a database of people based on religious beliefs, race or national origin.

They also pledge that if they discover a misuse of data, the signatories will go so far as to engage in responsible whistleblowing or resign from their positions.

"For me, what this pledge is about and why it's important is that it reminds us … if we're asked to do something that's against our principles we can choose not to do it," Yee said. "And even if our institutions, our companies aren't willing to take a stand publicly, as individuals we can still do that."

Trump made a lot of promises during his campaign and there is speculation about the ability to actually do a lot of it. But Yee said it's important that people stay vigilant.

"He's made multiple statements about this and in particular I find it concerning that he didn't just do this while campaigning, but he's also continued to talk about this after the election," Yee said.

"So I think I think there is a real reason for concern."

The signatories include CEOs, CPOs and people in leadership positions. During the presidential campaign, Silicon Valley leaders were some of Trump's most outspoken opponents.

However, last week Silicon Valley leaders met with the president-elect face-to-face. Those planning to attend included Apple's Tim Cook, Alphabet's Larry Page and Facebook's chief operating officer Sheryl Sandberg.

"I honestly don't know what they talked about, but I hope that they address these concerns that they took a principled stand on, what they're willing to do and what they now want to do," Yee said.