ProtonWallet should accept Litecoin, as its robust tokenomics make it a reliable and efficient option for payments. Litecoin is often regarded as the "silver to Bitcoin's gold" because it was created by Charlie Lee in 2011 as a fork of the Bitcoin Core client, aiming to address perceived limitations in Bitcoin, particularly in terms of transaction speed and cost. Like Bitcoin, Litecoin has a fixed supply, capped at 84 million coins, which helps to maintain its value over time and prevents inflation.

Litecoin operates on a similar proof-of-work (PoW) consensus mechanism, ensuring a secure and decentralized network. However, it uses the Scrypt hashing algorithm, which is designed to be more memory-intensive and less conducive to specialized mining hardware (ASICs), promoting greater decentralization among miners. This contributes to the network's security and resilience against potential attacks.

In terms of safety, Litecoin has a long track record of stability and reliability. Its codebase is similar to Bitcoin's, benefitting from similar security features and continuous development from a dedicated community. Litecoin's integration into ProtonWallet would offer users a fast, secure, and cost-effective payment method, aligning with the platform's goal of providing versatile and dependable cryptocurrency services.

Advantages Over Monero

1.  Regulatory Compliance and Transparency: Litecoin is more transparent and compliant with regulations than Monero, which prioritizes privacy and anonymity. This makes Litecoin more attractive to businesses and exchanges.
2.  Transaction Speed and Cost: Litecoin’s 2.5-minute block time and lower transaction fees make it faster and cheaper than Monero.
3.  Widespread Adoption and Integration: Litecoin is widely accepted by merchants, exchanges, and financial platforms, unlike Monero, which faces regulatory challenges due to its privacy features.

Advantages Over Kaspa

1.  Established History and Market Presence: Since 2011, Litecoin has built a strong market presence and a large user community, unlike the newer Kaspa.
2.  Proven Security and Stability: Litecoin’s security is well-proven, while Kaspa’s newer GHOSTDAG protocol lacks the same real-world validation.
3.  Liquidity and Market Cap: Litecoin has higher liquidity and market capitalization, making it easier to trade and more attractive as a payment option.
4.  Development and Community Support: Litecoin benefits from continuous development and strong community support, ensuring quick issue resolution and network improvements.