Project Charter
Project Charter: Bilko
Project: Bilko — Balkan Accounting SaaS
Version: 0.1
Date: 2026-02-23
Author: John (AI Director)
Status: Draft
Reviewers: Alem Bašić (CEO)
Document History
| Version |
Date |
Author |
Changes |
| 0.1 |
2026-02-23 |
John (AI Director) |
Initial draft |
1. Vision & Mission
Vision: Bilko becomes the default accounting platform for Balkan SMBs — the tool that every Serbian, Bosnian, and Croatian small business owner uses the way Norwegian businesses use Fiken. By end of 2027, 5,000+ organizations manage their finances through Bilko with zero friction, full regulatory compliance, and a product NPS above 50.
Mission: Build the simplest, most compliant, most affordable cloud accounting software for the Balkan region. We win by combining Fiken's UX simplicity with deep local regulatory knowledge — Serbian SEF e-invoicing, Croatian eRačun, BiH PDV — wrapped in local language and priced for Balkan budgets.
Strategic Alignment:
Bilko is ALAI Holding's first B2B SaaS product. It validates ALAI's ability to build and operate a self-sustaining software product — not just deliver client work. Bilko revenue creates ARR that funds ALAI's operational independence. It also establishes ALAI as a technology company in the Balkan market, opening doors to partnerships and follow-on products.
2. Scope
2.1 In Scope — Deliverables
| # |
Deliverable |
Description |
Acceptance Criteria Summary |
| D-01 |
Bilko Web Application (MVP) |
Next.js 15 frontend — invoicing, expenses, banking, reports, VAT |
All 8 core modules functional with real API data, not mock |
| D-02 |
Bilko API Backend |
Express + TypeScript — 50 endpoints covering all MVP features |
All endpoints tested, authenticated, rate-limited |
| D-03 |
Database + Schema |
PostgreSQL via Prisma — 15 models, multi-tenancy |
All data persisted correctly, double-entry enforced |
| D-04 |
Serbia regulatory compliance |
SEF e-invoicing integration, 20% PDV, Kontni Okvir |
Successfully submit test e-invoice to SEF sandbox |
| D-05 |
Production deployment |
Hosting, CI/CD, monitoring, SSL |
99.9% uptime SLA met, Lighthouse score ≥ 90 |
2.2 Out of Scope
- Payroll processing (Phase 2)
- Native iOS / Android mobile apps (PWA only in Phase 1)
- Live bank API connections (CSV import only in Phase 1)
- Croatia eRačun integration (Phase 2)
- BiH regulatory compliance (Phase 3)
- Multi-company management (Phase 2)
- Inventory management (Phase 2+)
- AI-powered bookkeeping automation (Phase 2)
- CRM or client management features
- White-label or reseller capabilities
2.3 Assumptions
| # |
Assumption |
Risk if False |
Owner to Validate |
| A-01 |
Serbian SEF API sandbox is accessible for development testing |
Integration delays 4-6 weeks |
Tech Lead |
| A-02 |
ALAI Tech d.o.o. Serbia registration completes before launch |
Cannot legally operate in Serbia |
Alem |
| A-03 |
No software certification required by Serbian tax authority for MVP |
Compliance blocker |
John |
| A-04 |
UBL 2.1 XML format accepted by SEF for e-invoices |
Rework of invoice engine |
Tech Lead |
| A-05 |
€11-17K budget is sufficient for Phase 1 MVP |
Scope reduction required |
Alem + John |
2.4 Constraints
| # |
Constraint |
Category |
Impact |
| C-01 |
Budget ceiling: €17,000 Phase 1 |
Budget |
Any feature exceeding budget requires CEO approval |
| C-02 |
Serbia first — launch before Croatia and BiH |
Timeline |
Architecture must support multi-country from day 1 |
| C-03 |
NUMERIC(19,4) for all monetary amounts — NEVER float |
Technical |
Enforced in database schema and API layer |
| C-04 |
Double-entry bookkeeping mandatory — every financial event creates debit+credit |
Technical |
Cannot simplify to single-entry even for UX reasons |
| C-05 |
LoggedAction table is append-only — no deletes |
Technical + Legal |
Audit trail immutability required for accounting law compliance |
| C-06 |
All deployment must use ALAI standard stack (Turborepo, Next.js 15, Express) |
Technical |
No framework changes without ADR approval |
3. Stakeholder Register
| ID |
Name |
Organization |
Role |
Interest |
Influence |
Engagement Strategy |
Contact |
| S-01 |
Alem Bašić |
ALAI Holding AS |
CEO / Sponsor |
Product success, ROI, market position |
High |
Weekly status + milestone reviews |
[email protected] |
| S-02 |
John |
ALAI Holding AS |
AI Director / PM |
Delivery quality, architecture, team coordination |
High |
Daily; owns all delivery |
[email protected] |
| S-03 |
Asmir Merdžanović |
SnowIT d.o.o. |
Partner / Balkan Ops |
Market entry, local compliance |
Medium |
Sprint reviews, regulatory questions |
Via Alem |
| S-04 |
Target: Serbian SMB owners |
Market |
End User Rep |
Simple invoicing, tax compliance, affordable price |
Low (pre-launch) |
Beta program (5 SMBs + 3 accountants) |
TBD |
| S-05 |
Target: Accountants |
Market |
End User Rep |
Client management, VAT accuracy, export features |
Low (pre-launch) |
Beta program |
TBD |
Key Decision Makers:
- Final scope decisions: John (AI Director) + Alem for budget/strategic
- Technical architecture approval: John
- Budget approval: Alem Bašić
- Contract/legal: Alem Bašić
4. Budget Summary
| Line Item |
Amount (EUR) |
% of Total |
Notes |
| Development (backend + frontend) |
€8,500 |
~55% |
AI-assisted; primary cost driver |
| Infrastructure / Hosting |
€1,200 |
~8% |
Year 1 cloud hosting, CDN, monitoring |
| Third-party licenses / APIs |
€800 |
~5% |
SEF API access, email provider, exchange rate API |
| Testing / QA |
€1,500 |
~10% |
Load testing, security scan, UAT |
| Project Management |
€1,000 |
~6% |
Coordination overhead |
| Design polish + brand assets |
€1,500 |
~10% |
Logo, landing page, marketing materials |
| Subtotal |
€14,500 |
100% |
Within Phase 1 range |
| Contingency Reserve (17%) |
€2,500 |
|
For approved change requests |
| Total Budget |
€17,000 |
|
Phase 1 ceiling |
Payment Schedule: Internal project — no external payment milestones. Budget tracked monthly by John, reviewed by Alem.
5. Timeline & Milestones
| # |
Milestone |
Target Date |
Gate Condition |
Owner |
| M-01 |
Backend foundation complete |
2026-03-07 |
50 API endpoints implemented and tested |
John |
| M-02 |
Frontend connected to real API |
2026-03-14 |
Mock data replaced with live API calls in all 8 modules |
John |
| M-03 |
SEF integration complete |
2026-03-21 |
Test e-invoice submitted to SEF sandbox successfully |
Tech Lead |
| M-04 |
Alpha release (internal) |
2026-03-28 |
All core features functional, deployed to staging |
John |
| M-05 |
Beta program launch |
2026-04-07 |
5 SMBs + 3 accountants onboarded, testing |
John |
| M-06 |
Beta feedback incorporated |
2026-04-21 |
All P1 beta feedback resolved, regression tests pass |
QA |
| M-07 |
Production launch (Serbia) |
2026-05-01 |
Go-live checklist passed, monitoring active, SEF live |
DevOps |
| M-08 |
Croatia launch prep |
2026-06-01 |
eRačun integration started, HR locale added |
Tech Lead |
Gantt Diagram:
gantt
title Bilko — Project Timeline
dateFormat YYYY-MM-DD
section Backend
API Endpoints (50) :s1, 2026-02-23, 14d
SEF Integration :s2, after s1, 7d
section Frontend
Mock → Real API Connection :f1, after s1, 7d
section Testing
Alpha / Internal :a1, after f1, 7d
Beta Program :b1, after a1, 14d
Beta Fixes :b2, after b1, 14d
section Launch
Production Launch (Serbia) :milestone, 2026-05-01, 1d
Croatia Prep :cr1, after b2, 30d
6. Success Criteria & KPIs
| # |
Success Criterion |
KPI / Metric |
Target |
Measurement Method |
Evaluation Point |
| SC-01 |
SMB adoption |
Paying organizations |
100 orgs in 90 days post-launch |
App analytics |
90 days post-launch |
| SC-02 |
Revenue |
Monthly Recurring Revenue |
€500 MRR by end of Month 3 |
Stripe / billing system |
Month 3 |
| SC-03 |
System performance |
Page load time |
< 1s (p95) subsequent pages |
Lighthouse + monitoring |
Launch + 30 days |
| SC-04 |
Uptime |
System availability |
≥ 99.9% monthly |
Uptime monitoring |
Ongoing |
| SC-05 |
User activation |
Create invoice in first 7 days |
≥ 80% of new signups |
Analytics |
Monthly |
| SC-06 |
User retention |
Monthly churn |
< 5% monthly |
Billing analytics |
Monthly |
| SC-07 |
Regulatory compliance |
SEF e-invoice submission |
100% success rate |
SEF API response logs |
Launch day |
| SC-08 |
Quality |
NPS score |
≥ 50 |
In-app survey at Day 30 |
60 days post-launch |
7. Dependencies
| # |
Dependency |
Type |
Impact if Delayed |
Owner |
Target Date |
Status |
| DEP-01 |
Serbian SEF API access credentials |
External |
Cannot test e-invoicing |
Alem / Asmir |
2026-03-01 |
Pending |
| DEP-02 |
ALAI Tech d.o.o. Serbia company registration |
External |
Cannot legally invoice Serbian customers |
Alem |
2026-04-01 |
In progress |
| DEP-03 |
Exchange rate API selection (ECB / fixer.io) |
Internal |
Multi-currency reports inaccurate |
Tech Lead |
2026-03-07 |
Open |
| DEP-04 |
Beta testers recruitment (5 SMBs + 3 accountants) |
External |
Beta phase delayed |
John / Asmir |
2026-03-28 |
Open |
| DEP-05 |
SSL certificate + domain DNS (bilko.rs, bilko.io) |
External |
Cannot launch production |
DevOps |
2026-04-14 |
Open |
8. Governance Model
8.1 Decision-Making Authority
| Decision Category |
Authority |
Must Consult |
Must Inform |
| Scope changes |
John |
Tech Lead |
Alem |
| Architecture decisions |
John (Tech Lead) |
Developer agents |
Alem |
| Budget changes > 10% |
Alem |
John |
N/A |
| Release go/no-go |
John |
QA, DevOps |
Alem |
| Team changes |
John |
N/A |
Alem |
| SEF / regulatory changes |
John |
Asmir (SnowIT) |
Alem |
8.2 Change Control Process Summary
- Request: Any stakeholder submits a Change Request (CR) using the
change-request.md template
- Impact Analysis: John + Tech Lead assess scope, timeline, budget, and risk impact within 3 business days
- Decision: John approves/rejects within 2 business days of impact analysis
- Budget changes > 10%: Require Alem approval
- Implementation: Approved CRs logged, prioritized in backlog, and scheduled
- Communication: All stakeholders notified of approved/rejected CRs within 24 hours
8.3 Escalation Hierarchy
L1: Developer Agent → John (response: 4 hours)
L2: John → Alem (response: 24 hours — strategic/financial/regulatory only)
L3: Alem → Asmir/SnowIT (response: 48 hours — Balkan market/legal questions)
9. Team & Roles
| Role |
Agent / Person |
Responsibilities |
Availability |
| Project Sponsor |
Alem Bašić |
Strategic direction, final budget approval, legal entity |
As needed |
| AI Director / PM |
John |
Delivery accountability, agent coordination, architecture |
Full-time |
| Business Analyst |
John / builder agent |
Requirements, acceptance criteria, documentation |
Full-time |
| Tech Lead |
John |
Architecture, code review, SEF integration |
Full-time |
| Developer(s) |
builder agents (Sonnet) |
Feature implementation — API endpoints, frontend |
Full-time |
| QA Engineer |
validator agents |
Test planning, execution, sign-off |
Per sprint |
| DevOps |
builder agent |
Infrastructure, CI/CD, deployment |
Part-time |
| Balkan Market Advisor |
Asmir Merdžanović (SnowIT) |
Regulatory guidance, local market, Serbian company |
Consulted |
10. Risk Summary
| # |
Risk |
Probability |
Impact |
Mitigation |
| R-01 |
SEF API instability / breaking changes |
Medium |
High |
Abstract behind service layer; monitor changelog; test in sandbox weekly |
| R-02 |
Serbian regulatory requirements change pre-launch |
Low |
Critical |
Monitor APR + Poreska Uprava announcements; Asmir as early warning system |
| R-03 |
Budget overrun from underestimated backend complexity |
Medium |
High |
17% contingency reserve; weekly burn tracking; scope reduction lever |
| R-04 |
Pantheon aggressive price cuts to undercut Bilko |
Low |
Medium |
Bilko wins on UX + cloud + simplicity, not just price; differentiation is durable |
| R-05 |
RSD/EUR/BAM currency volatility affecting pricing strategy |
Medium |
Low |
Price in EUR for stability; convert to local currency in billing at current rate |
Full risk register: [RISK-REGISTER.md](./RISK-REGISTER.md)
Approval
| Role |
Name |
Date |
Signature |
| Author |
John (AI Director) |
2026-02-23 |
|
| Reviewer |
|
|
|
| AI Director (John) |
John |
2026-02-23 |
|
| Project Sponsor |
Alem Bašić |
|
|
| CEO (Alem) |
Alem Bašić |
|
|
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