On the protocol development front, improvements are being made to the core Card Pay protocol family. The aim is to increase the robustness and handle special error conditions that arise when wallets are too low on tokens to be able to pay for gas.

While users don't need to have a separate gas token to perform actions through the Card Pay protocol,they need to have enough value in one of their token balances, because the system will deduct the requisite tokens to substitute the gas fees that are advanced by the relayer.

Learn more here: https://twitter.com/cardstack/status/1407600998068023296

We've been very busy this week—here's a quick progress update:
https://medium.com/cardstack/june-23-inside-cardstack-this-week-3c58623531b6

What are the payment methods on Card Pay, when a customer spends money with a merchant?
https://www.youtube.com/watch?v=zeGxShpQHWI&t=541s

Check out what the Cardstack team has been up to this month: https://medium.com/cardstack/whats-new-at-cardstack-a8833120b2d8

What is the role of the Cardstack token? In what ways can CARD be used?

Chris Tse explains here: https://www.youtube.com/watch?v=H-DheP-ExpU&t=2316s

There are 5 easy steps in the customer & merchant interaction when using Card Pay.

Learn more about this workflow from Chris Tse: https://www.youtube.com/watch?v=H-DheP-ExpU&t=957s

Card Pay needs participants to actively contribute value and judgement, so that the network can thrive and grow.

So what are the incentives for network participants? https://www.youtube.com/watch?v=H-DheP-ExpU&t=1905s

We are currently focused on end-to-end testing of the Card Bridge protocol as well as the multisig wallet creation workflow that is part of the Card Pay protocol.

Our testing involves both the dApp and the mobile wallet working well together. There are many dependent services from blockchain nodes, indexes like The Graph, relayers for meta transactions, as well as native code for user wallet interactions.

Learn more: https://twitter.com/cardstack/status/1410100862387585033

Here's what the Cardstack team has been up to this week: https://medium.com/cardstack/june-30-inside-cardstack-this-week-bc9fe355422d

While work continues on expanding the scope of the user experience both in the dApp and the native app, the core protocol and the SDK is reaching a very mature state.

We expect changes to be minimal from this point onwards. All team members are using the common Card Pay SDK that is already available as open-source code in the Cardstack GitHub.

Learn more here: https://twitter.com/cardstack/status/1410471206545870851

If you missed our AMA with KuCoin last week, check out how it went here: https://medium.com/cardstack/cardstack-ama-with-kucoin-482b12f90125

We understand that composability is important in the Web3 / Ethereum space. Therefore, we are also implementing a subgraph that is used by our SDK, and can be accessed directly via The Graph: https://thegraph.com/explorer/subgraph/habdelra/cardpay-sokol

Learn more here: https://twitter.com/cardstack/status/1410847265065869315

What are the numerous payment scenarios available for customers & merchants when using Card Pay?

Learn about Card Pay's building blocks here: https://www.youtube.com/watch?v=H-DheP-ExpU&t=1319s

The Cardstack team is working to test and improve the smart contract for Card Pay, the Card Wallet mobile application, as well as the Card Pay dashboard dApp in preparation for external beta testing.

On the smart contract, we completed one round of security audit in June based on code deployed to the Sokol Kovan testnet, and incorporated the feedback as well as added additional feature enhancement so that it can fulfil both the functional requirements in a safe manner.

Read more here: https://twitter.com/cardstack/status/1412304037580460033

Why use Card Pay when you can use other applications? Chris Tse explains why here: https://medium.com/cardstack/cardstack-ama-with-kucoin-482b12f90125#142f

On the mobile front, we are continuing testing and integrating new Card Pay SDK features so that all of the smart contract capabilities are exposed either through the mobile app, or the dashboard dApp.

Learn more here: https://twitter.com/cardstack/status/1412667214235258889

Catch up on our progress this week: https://medium.com/cardstack/july-7-inside-cardstack-this-week-8e0df22053ba

On the desktop dApp, we have completed the off-chain storage mechanism that allows for the visual customization of a prepaid card to be stored and synthesized by a decentralized identifier (DID).

This infrastructure allows prepaid cards and reward cards to be infinitely customizable so you can see a great wallet experience with various Card designs that represent the branding of the issuer, whether they are a merchant or another project.

Learn more here: https://twitter.com/cardstack/status/1413019764721688576

Card Pay makes crypto payments fast, cheap, and easy.

Learn how Cardstack is making this possible here: https://uploads-ssl.webflow.com/5e18083786ccdc43f2087bb2/604f58f528552f6a0434325b_Card%20Pay%20Protocol%20Overview%20V%201.0.pdf

How do traditional payments compare to Web3 payments and specifically Card Pay?

Chris Tse provides some context for the Card Pay protocol here: https://www.youtube.com/watch?v=KHDBF_OHSDI&t=65s

Card Pay, Card Bridge & Card Flow bring crypto from the world of DeFi into Cardstack's payment network.

DeFi is powerful. People can create loans and stablecoins, but it’s expensive to transact, which is why Card Bridge exists. https://youtube.com/watch?v=EbhqUU-GjUM&t=173s