> For the complete documentation index, see [llms.txt](https://solfile.gitbook.io/solfiles/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://solfile.gitbook.io/solfiles/product-guides/understanding-the-project.md).

# Understanding the project

<mark style="color:blue;">**solfiles**</mark> is like a secret clubhouse for chatting and sharing files with your friends. Here's how it works:

<mark style="color:purple;">**When you sign up**</mark>, you use your cryptocurrency wallet instead of making a new username and password. It's like having a special key to get in.

<mark style="color:green;">**Once you're in**</mark>, you'll see your list of friends and a place to chat with them. You can also start chats by sending money directly from your wallet to someone else's.

<mark style="color:blue;">**Everything you say and share**</mark> is kept super safe with fancy coding. It's like putting your messages in a locked box that only you and your friend have the keys to.

<mark style="color:purple;">**If you haven't talked for a while**</mark>, your chat will lock itself, just like when you leave your bike in a safe spot. Both you and your friend need to agree to unlock it.

<mark style="color:green;">**Sharing files**</mark>, like photos or documents, is as easy as sending a message. They're also kept super safe and can only be seen by the person you send them to.

<mark style="color:blue;">**If your friend sends you something**</mark>, like a funny picture, you can only look at it once. After that, you'll need their permission to see it again.

<mark style="color:purple;">**We're always making Solfiles better**</mark>, just like adding new toys to a clubhouse. Your privacy is our top concern, so you can chat and share without any worries.

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