I build softwareand ship it as products.

Sergiu-Andrei Borca

Computer Science student at UTCN in Cluj-Napoca. I build Flutter apps and Java back ends, test them properly and see them through to release.

Open to software internships

See Solo Ship Kit Get in touch

Solo Ship Kit

v0.1.0Oct 2026Waitlist open

The Claude Code workflow and guardrails for shipping Flutter apps on your own.

For Flutter and indie developers who already use Claude Code and want to ship without breaking things.

Pricing

Prompt CardAvailable now: Free; The 7-part prompt format, an annotated example, 5 prompts and the guard hook rules.
CoreAt launch: $24; The guide, 20+ prompts and the drop-in setup.
ProAt launch: $49; $29 on the waitlist; Everything in Core, plus the starter Flutter app and free updates.

The full kit is in the works. People on the waitlist get Pro for $29 instead of $49.

Get the free Prompt Card Join the waitlist

Joining the waitlist is free: you only pay once your spot is approved. Both open Whop in a new tab.

It’s the workflow I used to build Direction, written down: a prompt format that gets features built right, a guard hook that keeps Claude away from your secrets, and the 9-step loop every feature goes through.

What’s in the full kit

A guide to the whole workflow
20+ prompts, ready to fill in
The drop-in setup: a guard hook that keeps Claude away from secrets, a read-only reviewer agent and four skills
In Pro: a starter Flutter app wired with all of it

The 9-step loop

Every feature goes through the same steps. The commit between features is the save point.

1Start a clean session
2Plan mode, then the prompt
3Check the plan
4Tests first
5Look at the changed screenshots (goldens)
6Format, analyze, test
7Review the diff yourself
8One commit per feature
9CHANGELOG and DECISIONS

Direction

Oct 2026Closed testing on Google Play

Find what energizes you.

A Flutter app for Android and the web. A short strengths quiz finds what gives you energy, then the app plans one small step a day around it.

Strengths quiz: eight questions, five strengths
A 7-day path built on your top strength
A daily Day Plan across seven areas
Evening check-ins that show which activities go with your best days
Forgiving streaks: every 7 active days earn a rest day

Try the web demo Screenshots & details

Automated testsincl. golden screenshot tests: 384
Backendoffline-first, data stays on the device: None
Platforms: Android + web
Built with: The Solo Ship Kit workflow

Flutter
Dart
Android
Web
Golden tests

Vitaly

May 2026Open source on GitHub

CS2 player analytics: a Discord bot and a web dashboard in one Java process.

Turns FACEIT data into a scouting report: stats, playstyle across 30 archetypes, best maps and auto-veto, head-to-head compare and an ELO leaderboard.

Slow commands run on a worker pool, so the Discord gateway thread never blocks.
A TTL cache and retries with backoff that honour Retry-After protect the shared API quota.
The web API rate-limits each client and caps concurrent aggregations.
29 JUnit tests against an in-process fake API, run in GitHub Actions CI.

Discord commands

!stats
!role
!maps
!compare
!period
!leaderboard

Source on GitHub

Playstyle archetypes: 30
JUnit tests: 29
Profile cache: 5 min
Scoreboard cache: 24 h

Java 21
JDA 5
Javalin 6
SQLite
JUnit 5
GitHub Actions

Discord gateway

DiscordBotworker pool

Browser

WebDashboardJavalin + rate limiter

FaceitApiClienttimeouts · retry · TTL cache

FACEIT Data APIv4

PlayerRepositorySQLite leaderboard

Two front ends in one process. Both share one FACEIT client, one response cache and one SQLite leaderboard.

Washing Machine Controller

May 2025Runs on a Nexys A7

A finite state machine in VHDL, running on a Nexys A7 FPGA board.

A manual mode and five automatic programs. The control unit (the state machine) drives an execution unit: timers, heater, door lock, time calculator, 7-segment display and LEDs.

Source on GitHub

FSM states: 12
Programsplus a manual mode: 5
Board clock: 100 MHz
Test speed: 1 s = 1 wash minute

VHDL
Vivado
Nexys A7
FSM

Pick a program

The five programs from the board’s ROM. Pick one to step through the stages it runs.

Temperature: 30 °C
Spin: 1200 rpm
Prewash: No
Extra rinse: No

Wait for startwait_start
Heat waterwater_heating
Prewash · skippedprewashing
Washwashing
Rinserinsing
Extra rinse · skippedextra_rinsing
Spincentrifugation
Finishfinishing

The FSM has 12 states: these 8 wash stages, plus inactive, manual_mode, auto_mode and calc_time before a wash starts.

Coursework

Smaller Java projects from university.

Queue Management Simulator
Multithreaded simulation of clients across service queues: one thread per queue, thread-safe queues, Strategy and Observer patterns, a live Swing view.
Mar 2026
- Java
- Concurrency
- Swing
Source on GitHub (opens in a new tab)
Task Management Suite
Swing app with nested tasks (Composite pattern, sealed class hierarchy) and workload reports written with Streams.
Mar 2026
- Java
- Swing
- Streams
Source on GitHub (opens in a new tab)

About

I’m Sergiu, a Computer Science student at the Technical University of Cluj-Napoca. I like taking a project all the way: the tests, the store listing, the page that explains it.

Direction showed me that a good test suite is what lets one person keep shipping, and Solo Ship Kit is that workflow, written down for other developers. Next, I’m looking for a software internship where I can do the same on a team.

Stack

Java
C
C++
SQL / PostgreSQL
Flutter / Dart
PHP
HTML / CSS
VHDL

Get in touch

Questions about an internship, a project or the kit? Email is the fastest way to reach me.

sergiuborca30b@gmail.com