Maralto Studios
PTEN

Maralto Studios · 2026

I build the invisible infrastructure behind digital communities.

Plugins, bots and automations in Java and Python that run around the clock — modular, configurable and documented for whoever comes next.

See the workDiscuss a project
Open to projects and remote roles
Role
Back-end · Java & Python
Based
Itaboraí, Brazil · UTC−3
Delivery
Fixed scope, documented code
Reply
Within 24h, Mon–Sat
5
projects in 12 months
2
MIT licences
57
automated tests
24/7
in operation
01Selected work

Five systems, five different problems.

Each entry shows the problem before the code. If you recognise the pain, the case is yours.

012026 · client

Central dos Players

Valorant community bot: onboarding with a rendered card, social feed, VIP spaces and a design panel. Staff stepped out of the middle.

  • Python
  • PostgreSQL
  • Pillow
  • Components V2
1000×560 · rendered card
022026

CombatForge

Combat and per-level XP engine for Paper 1.21+. Sliding-window anti-farm, global ranking, public API with a cancellable event, three languages.

  • Java
  • Paper 1.21+
  • MIT
3 languages · PT · EN · ES
032026

minecraft-statusbot

Server status panel in Discord, refreshed every 30 seconds and configured entirely through slash commands.

  • Python
  • discord.py
  • MIT
30s · refresh interval
042026

desktop-organizer

File organiser with local AI that proposes but never acts alone: plan, confirmation, dry-run, operation journal and undo.

  • Python
  • Ollama
  • Tkinter
57 · automated tests
052026

LetterForge

Letter system for Minecraft 1.21+ roleplay, with a full in-game interface, images and level-based permissions.

  • Java
  • Paper 1.21+
  • YAML
in-game · without leaving the game
02Services

Three things I deliver.

Scope fixed before the first line of code. If configuration requires editing a file, delivery is not finished.

Discord bot

Onboarding, moderation, social feed, API and database integration. Everything configurable by command.

2–4 weeks

Paper plugin

Progression, economy, in-game interface and integration with MMOCore, MythicMobs or PlaceholderAPI.

2–6 weeks

Automation and integration

Scripts, CLI and unattended routines — with dry-run, journal and undo before any write.

1–2 weeks

Request a quote

03How I work

Four rules that do not change.

  • ModularDomain, persistence, rendering and interface kept apart — so it can evolve without a rewrite.
  • ConfigurableWhat the client changes day to day lives in a command, YAML or a panel. Never in code.
  • Secure by defaultInput validation, per-command permission, reversible operations and isolated failure.
  • DocumentedREADME, operations guide and delivery checklist are part of scope, not an extra.
04Who signs it

B.Sc. in Biological Sciences (2019–2022). Wrote and maintained an RPG system from 2023 to 2025. Building back end in Java and Python since then — three backgrounds, one practice: understand a system with rules, document it, keep it running unattended.

Full background

05Contact

Describe the problem, not the code.

Reply within 24 hours, 9am to 10pm (UTC−3). If the project is not mine to take, I say so.

Itaboraí, RJ, Brazil · 09:00–22:00 (UTC−3)

Replies within 24h (UTC−3).