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Services
Portfolio
- All projects
- VulCode
- Flaem
- Plazer
- Gyred
- Polimata
- VulMail
- VulBio
- Aphrodi
- Querora
- Reelelle
- Kouryer
- WaveHost
- Sinlege
- Lunatic Studios
- DualFroz
- Heartbeetle
- dev.dualfroz.com
- Jajco
- Jeju Macieju
- VulCode client panel
- Staff panel
- Aphrodi client panel
- WaveHost client panel
- SafeBands
- Monitoring and status
- Flaem operator panel
- Flaem reseller panel
- Flaem client panel
- Atrium hotel panel
- Lokal hospitality panel
- vulp
- Flaem
- Gyred
- Plazer
- VulCode
- WaveHost
- Aphrodi
- Atrium
- Lokal
- Discord bots
- webhook-proxy
- Ops scripts
- ghapi
- Nebula
- monito
- mailcow-mcp
- lokalny-bot
- Flaem
- Plazer
- Gyred
- DualFroz Candy Jar
- Lokal
- Atrium
- RimShot
- Flaem
- Plazer
- Gyred
- vulp
- studio
- Atrium
- Lokal
- RimShot
- Linux desktop add-ons
- CodeHeat
- Pharos
- Cairn
- VulMail
- RimShot
- pixel-platformer
- 74 MVP frontends: websites, shops, panels and apps
- frostbyte
- voxelforge
- gameboy-sharp
- chip8-sharp
- vantage
- kestrel
- sift
- fml
- lumen
- prism
- bazaar
- slotline
- cellar
- cobalt
- excache
- fluxswap
- gambit
- warren
- kite
Blog
- All posts
- Flaem: panel, store and licences for a hosting company in one installation
- KSeF for foreign companies with a Polish VAT number
- Plazer in the browser: what loads at start and what waits until it is needed
- Taking over a project from another vendor: what we check before we quote
- Channel manager and Booking.com: how a hotel connects its own booking system
- How much does an e-learning platform cost: hosted, licensed or custom
- How much does website maintenance cost per year
- How much does a website or online store migration cost
- A Discord alternative for businesses and communities: what to compare
- Migrating from VMware to Proxmox VE: plan, downtime and costs
- WHMCS alternatives: what to check before you switch your hosting billing system
- How much does a custom CRM or client portal cost
- How much does a landing page cost, and when is one page enough
- How much does a mobile app cost in 2026, simple ones included
- Shoper, WooCommerce or a custom store: choosing a platform before peak season
- BaseLinker vs Apilo vs Sellasist: choosing an order hub for multichannel selling
- Tauri vs Electron in 2026: size, updates and long-term upkeep of a desktop app
- Polish payment gateways compared: Przelewy24, PayU, Tpay, Paynow and Stripe
- How much does an online store cost in 2026: a SaaS plan, WooCommerce or a custom build
- Website development contract: the clauses that protect both sides
- Autoprefixer: grid gaps set with grid-row-gap and grid-column-gap survive inheritance
- Carbon: round(3600) rounds to the full hour instead of only zeroing seconds
- Concourse: task file vars are interpolated before the file is parsed
- How to build a Discord bot in Python: from the token to slash commands
- How to build a Minecraft server store: payment and automatic delivery
- How to host an SCP: Secret Laboratory server on Linux, step by step
- ILSpy: the decompiler no longer leaves a delegate cache field behind
- InPost ShipX API step by step: shipment, label and statuses
- Installing Pterodactyl step by step: the panel, Wings and the first server
- KSeF API 2.0 step by step: sending an invoice from your own system
- Monolog: RedactingFormatter now hides secrets nested in arrays
- Pelican Panel: updating a plugin no longer crashes
- PHPMailer: QUIT no longer ends up inside an interrupted message
- Przelewy24 REST API: a payment from registration to verification
- Pterodactyl vs Pelican in 2026: which game server panel to choose
- Software and e-commerce glossary
- Sonic: TRIGGER backup works while a store is in use
- vscode-neovim: visual selections no longer cut an emoji in half
- Your first Minecraft plugin on Paper 26.3: from project to test server
- Zed: a slow ChatGPT model catalog no longer blocks sign-in
- What a KSeF integration costs: what you pay for with API 2.0
- How much does a custom Discord bot cost: from one script to a system with a panel
- Five fixes in Proxmox VE: what we changed in the interface and how a patch gets through pve-devel
- API integration: how to connect your website, online store or admin panel to ERP, CRM, accounting and payments
- How to build an MVP: the first version of your product without burning through the budget
- The KSeF e-invoicing timeline and connecting your own system to API 2.0
- GDPR compliant website: forms, consent, cookies and privacy policy
- Digital accessibility for websites and online stores: WCAG 2.2, the European Accessibility Act and Polish law
- Business hosting: shared, VPS, dedicated server, cloud or PaaS
- Business website security: a checklist and a plan for when you get hacked
- WordPress vs headless CMS: which architecture to choose for a company website
- Core Web Vitals in practice: how we deliver 95+ in PageSpeed
- How much does a website cost in 2026: price ranges and what drives them
- Admin panel instead of a spreadsheet: when your business has outgrown Excel
- Multilingual website SEO and hreflang: URL structure, translation and the mistakes that break rankings
- Landing page vs company website: which to choose and when you need both
- Website migration without losing Google rankings: from URL inventory to monitoring
- Working with a software house: how a project goes from the first message to launch
- Technical SEO checklist before launch: from staging to Search Console
- Why we contribute to open source: what a software house gains from fixing other people's code
- How to write a project brief for a software house: structure, example and common gaps
- Your own online store vs Allegro: which pays off and when to sell on both
- How to read a software development quote and what to watch out for
- Fixed price vs time and materials: how to choose a billing model for an IT project
- PWA vs native app: what to choose in 2026 and what a PWA still cannot do
- How to choose a software house: questions, red flags and the contract
- Website maintenance after launch: monitoring, fixes and upkeep for sites and apps
Service catalog
- Web apps and PWAs
- Multilingual websites
- Business card website
- AI and chatbots
- Process automation
- Discord bots
- Game plugins and scripts
- Games and prototypes
- UI/UX design
- Project takeover
- Code audit
- Website and store migration
- Website transfer
- Technical SEO and speed
- Website speed optimization
- Digital accessibility
- Servers and DevOps
Working with us
Integrations
- Integrations
- Invoicing and ERP
- Online payments
- Multichannel selling
- Couriers and shipping
- E-commerce platforms
- KSeF
- Subiekt GT and nexo
- Comarch Optima
- enova365
- Symfonia
- Fakturownia and wFirma
- Przelewy24
- BLIK
- PayU
- Tpay
- Paynow
- Stripe
- Allegro
- BaseLinker
- Apilo
- Sellasist
- Erli, Empik, Amazon and Temu
- InPost
- DPD
- Furgonetka
- Apaczka
- WooCommerce
- Shoper
- Shopify
- IdoSell
- PrestaShop
- Pterodactyl
- WHMCS
- Discord
- Messengers and social media
- Steam
- Google login and SSO
- Channel manager and Booking.com