Lightning Address
{#if isCheckingUsername}
Checking for existing username...
{:else if hasExistingUsername}
Your Lightning address: {existingUsername}@{BASE_DOMAIN}
{:else}
Register a username to receive Lightning payments at {username ||
"yourname"}@{BASE_DOMAIN}
(username = (e.target as HTMLInputElement).value)}
placeholder="Enter username"
class="retro-input"
disabled={isRegistering}
/>
{#if registrationStatus}
{registrationStatus}
{/if}
{/if}