Laiteux

using System;
using System.Text.RegularExpressions;

// NOTE: Change min length to 4 (instead of 5) in the RegEx if you want to include/allow NFT/Fragment usernames
bool ValidateTelegramUsername(string username)
    => Regex.IsMatch(username.TrimStart('@'),
        @"^(?=.{5,32}$)(?!.*__)(?!^(telegram|admin|support))[a-z][a-z0-9_]*[a-z0-9]$",
        RegexOptions.IgnoreCase | RegexOptions.Compiled);
        
Console.WriteLine(ValidateTelegramUsername("Laiteux1")); // True

Laiteux

using System;
using System.Linq;
using System.Net.Http;
using System.Text.Json;
using System.Threading.Tasks;

namespace CloudflareDnsCleaner
{
    // NOTE: Old, idk if it still works or anything
    public static class Program

Laiteux

Keybase proof

I hereby claim:

• I am Laiteux on github.
• I am laiteux (https://keybase.io/laiteux) on keybase.
• I have a public key whose fingerprint is 46C0 9546 A24F 4C3F 52DC D813 2140 1EA7 66E3 C84D

To claim this, I am signing this object: