Case studies
Real projects, real numbers. Clients under NDA โ names withheld, the work and the stack as is. In-house products are marked separately.
Finance Assistant: PDF bank statements to a Telegram budget
our own product: a bot and web dashboard, four banks' statements, Gemini
Peregovorka (ToshaStream): streaming server and team voice chat
our own product in production, version 1.50.0: voice, chats and a private stream
OshaVPN: VPN client for Android, Windows 10/11 and Windows 7
our own app to replace NekoBox, Hiddify and v2rayNG, now in testing with users
VPN infrastructure: Russian entry node, European exit
our own product: a relay in Russia, a persistent tunnel and a node in the Netherlands
OshaPlay: audiophile music player for Android
bit-perfect USB DAC output and audiobooks, our own product at version 0.10.0
Tech Poly VPN: VPN subscription billing in Telegram
our own product: SBP payments, key issuing in Marzban, a backup VKontakte bot
UNLOCK: Interactive Greeting Cards and Advent Calendars
our own studio service: a card behind a password link, managed from Telegram
Crash-report receiver for our own apps
OshaPlay and the VPN client send crashes and logs to servers we run ourselves
DevUnit Lab: A Bilingual Studio Website on Nuxt 4
our own studio site, in production since 29 September 2026
Golos Bot: Telegram voice messages transcribed to text
in-house Telegram bot: voice notes, video notes, audio and video to text via Gemini
A private server for several websites on Docker and nginx
our own product: site isolation, HTTPS, self-hosted mail and backups
ToshaMusic: Hi-Res music downloads with quality verification
in-house Telegram bot: FLAC 24-bit / 192 kHz from Qobuz, Deezer and Tidal
VPN setup guides for Android, iPhone and desktop
open pages for a Telegram Mini App: five platforms, no build step, no dependencies
Streaming service access bot: code login from Telegram
our own bot for Peregovorka (ToshaStream): code login, approvals, roles
Downloader Bot: save TikTok and YouTube videos via Telegram
in-house bot: no watermarks, quality up to 4K, MP3, files up to 2 GB
Birthday bot: reminders and a gift budget
our own product: friends and family add the dates, the admin gets the reminders
Laser tag: a system for arenas
In-house product: guns, headbands, database and scoreboard in one system, with its own page.
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