Funding for code-d/serve-d

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On Saturday, 5 May 2018 at 11:21:29 UTC, Mike Parker wrote:
> This morning at the Hackathon I announced that the D Foundation 
> is raising money for code-d/serve-d, the plugin for Visual 
> Studio Code and its companion Microsoft Language Server 
> Protocol implementation for D.
>
> We've set up a goal of $3000 at our Open Collective page:
>
> https://opencollective.com/dlang#
>
> At the top of the page, you'll see our current balance, the 
> projected balance at the end of the year based on the current 
> level of monthly donations, and the goal of $3000 on the far 
> right.
>
> We're sitting at just over $1100 as I write this, which means 
> we're almost halfway there already. We encourage those of you 
> who use Webfreak's VS Code plugin to contribute whatever you 
> can in order to fund its development, especially if you want to 
> see it improve.
>
> An important point is that development on serve-d can 
> ultimately benefit not just code-d, but other IDE and editor 
> plugins where it may be used.
>
> If we reach $2700 within 30 days, the D Foundation will throw 
> in the remaining $300 and we'll let Webfreak get to work.
>
> If this proves successful, we hope to use future goals to fund 
> development across the D ecosystem. Some of our targets will be 
> driven by the results of the recent State of D Survey and 
> others will be driven by other concerns. If you are interested 
> in helping to move the state of D development forward, please 
> consider contributing!

I'm a little unclear how OpenCollective works. Do you have to 
specifically donate to this goal, or does every donation made 
just go to that? Furthermore, I don't really want to create an 
OpenCollective account just to donate; I'd prefer to do it 
directly with my Paypal. Is that possible?

Also, does anyone have an image of the supporter t-shirts? If 
possible I want to donate an amount to get one of those.