> For the complete documentation index, see [llms.txt](https://niftsy-protocol-niftsy-1.gitbook.io/niftsy/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://niftsy-protocol-niftsy-1.gitbook.io/niftsy/tutorials/dapps/launchpad-wino/version-0/instruction.md).

# Instruction

Step by step guide

### Administration

Launchpad is used to distribute ERC-20 tokens of projects. ERC-20 tokens are placed in the wNFT version №0 (v.0) of the Envelop Protocol as Collateral. And they are being transferred to the smart-contract address of the Launchpad. You can create a wNFT here (<https://app.envelop.is/#/>) or here (<https://app.envelop.is/#/saft>).&#x20;

For each ERC-20 token, a different smart-contract is deployed for the Launchpad. And prices are set in native (coins) and ERC-20 tokens per unit of token sold. The price of wNFT with Collateral in ERC-20 tokens sold is defined as the price per unit multiplied by the number of tokens sold in the wNFT Collateral.

A separate web application is deployed for purchasers of the project tokens, to which the deployed launchpad smart-contract is connected. Deployment of the web application and the smart-contract customization can be done by the DAO Envelop support team or technical team of the project, which purchased the Launchpad from DAO Envelop. For purchasing and setup questions, please e-mail:[ info@envelop.is](mailto:info@envelop.is).

See documentation  <https://docs.envelop.is/tech/smart-contracts/v0/contract-launchpad.sol> to learn how the smart contract of the Launchpad works.

### User manual

A launchpad with NIFTSY DAO Envelop tokens for sale can be found at <https://app.envelop.is/launchpad/#/> on the Binance Smart Chain (BSC) network.

On the launchpad, wNFTs are displayed as cards with the number of ERC-20 tokens they contain and their prices.

<figure><img src="https://333832744-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-McHCU838dvxE6AYohpm%2Fuploads%2FdPGV46bCoTN2vcX1KhDs%2Fksnip_20221222-100920.png?alt=media&amp;token=0c10f05c-39d8-4420-b70c-2cdab0f6b316" alt=""><figcaption></figcaption></figure>

User selects tokens from a list with which they want to pay wNFT:&#x20;

<figure><img src="https://333832744-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-McHCU838dvxE6AYohpm%2Fuploads%2FGIXZcsHJPB6Q0ulynAXy%2Fksnip_20221222-101020.png?alt=media&amp;token=1bd9f416-56cf-4851-9fbb-16f0bae3a1c1" alt=""><figcaption></figcaption></figure>

Presses the "**Buy**" button:

<figure><img src="https://333832744-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-McHCU838dvxE6AYohpm%2Fuploads%2FLUAeEaUbDw5GfvmOenk3%2Fksnip_20221222-101056.png?alt=media&amp;token=6dae12d6-0a29-4c93-b239-051f2268e52e" alt=""><figcaption></figcaption></figure>

Gives permission to use their ERC-20 tokens to the launchpad smart contract by confirming the transaction on the pop-up that opens. It is necessary for the smart contract to be able to **withhold** payment when purchasing **wNFT**.

Confirms the transaction in MetaMask:

<figure><img src="https://333832744-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-McHCU838dvxE6AYohpm%2Fuploads%2Flw1qR0LlLvIz7KuDpINS%2Fksnip_20221222-101408.png?alt=media&amp;token=0055b8d4-e10d-4782-a2f9-90147e8afa54" alt=""><figcaption></figcaption></figure>

Then press Buy on the wNFT card again. And confirm the payment transaction with "Pay".&#x20;

<figure><img src="https://333832744-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-McHCU838dvxE6AYohpm%2Fuploads%2F1aBxOc4yXrBnXDKzWGZn%2Fksnip_20221222-101513.png?alt=media&amp;token=2425ffc1-e06f-49d4-8b8b-a1e7654ef90f" alt=""><figcaption></figcaption></figure>

Confirms the transaction in MetaMask.<br>

<figure><img src="https://333832744-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-McHCU838dvxE6AYohpm%2Fuploads%2FtpsJb3uGymFX4UTuSE5p%2Fksnip_20221222-101548.png?alt=media&amp;token=c1566795-89a9-4628-8cc2-dd602e1fe02b" alt=""><figcaption></figcaption></figure>

The app informs you that the user has **purchased** wNFT.

<figure><img src="https://333832744-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-McHCU838dvxE6AYohpm%2Fuploads%2FLa6unS6zdglz0Zvgx4CP%2Fksnip_20221222-101629.png?alt=media&amp;token=c3824087-ea49-4051-ba4a-7bd7bacffa2a" alt=""><figcaption></figcaption></figure>

Further wNFT can be found on the dashboard in the Wrapper app:&#x20;

<https://app.envelop.is/>  &#x20;

After the time-lock date, wNFT can be unwrapped and NIFTSY tokens can be added to your balance.

<br>