Software house · Built on 30 years of ERP

Next-generation manufacturingreservationplanningqualitygrowth software, built with enterprise discipline.

Techrarium is the software house of a team that spent three decades implementing ERP in factories, warehouses and on the shop floor, now rebuilding that experience with today's cloud, mobile and AI technologies. We make software that knows how the work actually gets done.

0+years of ERP field experience
0flagship products: Nitropi & Byrezzo
0+documented architecture decisions
0languages (TR · EN · DE · RU)
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Heritage · 30 years of ERP
1995
19952003201220192026
01 · Foundations

Item cards, accounts, invoices. It all started with a ledger.

The most important rule we learned in our first implementations still holds: only a movement document may change a balance. Every number needs a story.

  • Inventory & costing
  • Accounts
  • Invoicing
02 · Integration

Departments met in a single database.

Purchasing, production, sales and accounting started speaking the same data. Approval flows, permission matrices and work orders became the backbone of ERP.

  • Approval flows
  • Bills of materials
  • Work orders
  • Roles & permissions
03 · Planning

MRP, capacity and the "what, when, where" question.

We worked side by side with hundreds of planners and saw that every plan escaping to a spreadsheet answers a question the ERP left open.

  • MRP
  • Capacity
  • Safety stock
  • Procurement
04 · Cloud & mobile

ERP left the desk for the floor, the phone and the workstation.

Work orders scanned by barcode, stock counts on a phone, guests booking from their own devices. The user is no longer just the accountant.

  • Multi-tenant SaaS
  • Mobile
  • Barcodes
  • APIs
05 · Techrarium

Thirty years of know-how, in software written from scratch.

We took the lessons of legacy systems, not their baggage. The result: fast, secure, AI-assisted products that understand the field.

  • Nitropi
  • Byrezzo
  • AI
  • Optimization
Why Techrarium

A team that knows ERP writes different software.

We don't design our products around an idea, but around problems we have met in the field again and again. Every decision is written down, every module is tested, every number is traceable.

01

Process comes first

We fit software to the business, not the business to software. The real day of the planner, the warehouse clerk and the waiter is where design starts.

02

Secure by default

Tenant isolation at the database level, mandatory two-factor authentication for every role, encrypted files and an immutable audit trail. Not an add-on: the baseline.

03

Every decision documented

Architecture decision records, user help cards and end-to-end tests. Software doesn't get messier as it grows; the reason behind every choice is always known.

Product family

Two products, one engineering culture.

One speaks the language of the factory and the warehouse, the other of the dining room and the table. Both are built with the same care and the same security and quality standards.

Nitropi
ERP · Manufacturing · Trading

ERP for machinery, spare parts and cutting tools.

From inventory to purchasing, from bills of materials to MRP, from finite-capacity scheduling to measurement and quality: everything a company that makes and sells needs, on one platform.

MRPAPS schedulingQuality & CMMMaintenanceCRMMobile
Byrezzo
Reservations · Appointments · Guest experience

A reservation platform for restaurants and service businesses.

Floor plans, smart table assignment, a Gantt view, a website widget, an AI guest assistant and marketing emails. On web and mobile, in four languages.

Table planGanttWidgetAI assistantMulti-branch4 languages
1Measurement & BallooningNEW
Part of the Nitropi family · Quality · Inspection · First article (FAI)

From technical drawing to inspection report, automatically.

Finds and balloons the dimensions and tolerances on PDF, DXF or scanned drawings; generates the inspection report, AS9102, PPAP, SPC and the CMM program from the same plan. Standalone or with Nitropi ERP.

Auto-ballooningOCR & DXFGD&TAS9102 / PPAPSPCSTEP → DMIS
Nitropi

The whole make-and-sell company, on one axis.

A multi-tenant ERP on web and mobile, designed for companies that sell machinery, spare parts and cutting tools and also run their own production. What generic suites solve with a "customization project" comes ready in Nitropi.

nitropi · Stock movement ledger
KSC-0142 · Carbide end mill Ø12Main warehouse
GRN-881Goods receipt · Supplier A+120$ 12.50
PRD-219Issue to production · WO-0451−36FIFO
TRF-077Transfer → Izmir branch±24Lot L-2611
SHP-390Shipment · Customer B−18Serial ✓
CNT-012Stock count adjustment+2Approved
AVAILABLE BALANCE
Safety stock: 40
68 pcs
Bill of materials · v3 · MRP explosion14 items
Grinding Unit TU-40 Body (make) Phantom: Kit Shaft (subcon.) Casting Bearing ×2 Steel bar Coating MRP suggests → 2 work orders · 3 purchase requests · 1 subcontract
APS · Scenario CZ-0031Rule-based
CNC-01
CNC-02
Grinding
Assembly
Quality
7late jobs
71%machine utilization
11.5 htotal setup
Ballooning · Drawing R-2207CMM ready
150 ±0.0580Ø36 H7Ø20 1 2 3 4
1150 ±0.05150.02 ✓
280 ±0.179.96 ✓
3Ø36 H736.012 ✓
4Ø20 ±0.0220.031 ✕
Probe points generated from the STEP model · 3D view
Security layersOn by default
PostgreSQL RLS · tenant isolation Mandatory 2FA for every role AES-256-GCM file encryption Immutable audit trail Field-level permissions + approval limits
Deployment optionsSame images · same code
☁ Cloud
Multi-tenant SaaS
Automatic updates
Web + iOS + Android
Managed backups
🏭 On-premises
On your own server
Guided setup wizard
Signed license file
Works air-gapped
01 — INVENTORY CORE

Every unit has a story.

In Nitropi, only movement documents change a balance. One single entry point, a defined lock order for concurrent transactions and proper valuation: numbers never change "on their own".

  • Multiple companies, branches and warehouses, with optional bin/location tracking
  • Code template engine: company → material type → product group → item code
  • 20 typed extra parameter slots (numeric, text, date, yes/no) plus unlimited dynamic attributes
  • Lot and serial tracking, counts, transfers, adjustments; ZPL thermal printer and PDF labels
  • Color-coded alerts driven by safety stock, critical level and lead-time pull-in parameters
THE DIFFERENCEWith the printer bridge, jobs are sent from a phone to the warehouse's USB or network label printer. No port forwarding, no extra software.
02 — PRODUCTION & MRP

From bill of materials to work order, in one explosion.

Versioned bills of materials, phantom items, work centers, stations and routings. MRP reads sales orders and the master production schedule and proposes work orders, purchase requests and subcontracting.

  • Supply type (buy / make / subcontract) and planning method (MRP / ROP) on the item card
  • Barcoded work order printouts; partial or full completion by scanning at the station
  • Scrap and waste recording, actual production cost
  • Planner workbench: review, merge and approve suggestions
THE DIFFERENCESubcontracting and phantom items are not separate modules, they are a natural part of the BOM. The real flows of cutting tool and spare parts companies were modeled from day one.
03 — ADVANCED PLANNING (APS)

An "Optimize" button that actually optimizes.

Finite-capacity scheduling with machine calendars, downtime, sequence-dependent setup times, alternative resources and material links. Local search and the Google OR-Tools CP-SAT solver on top of rule-based strategies.

  • Ship date, priority, critical ratio, setup-first and just-in-time (JIT) strategies
  • Drag-and-drop Gantt, scenario comparison, exact undo
  • Deterministic engine: the same input always yields the same schedule
  • The result can never be worse than the starting plan; publishing sends the sequence to shop floor terminals
THE DIFFERENCEIn many ERPs, APS is a separately licensed product, or planning escapes to Excel. In Nitropi, scheduling runs on the same data as work orders and the shop floor terminal.
04 — QUALITY & MEASUREMENT

From technical drawing to inspection report, automatically.

Dimensions on PDF technical drawings are read and marked with numbered balloons. Surfaces and probe point candidates are extracted from the STEP 3D model, automating CMM preparation.

  • PDF dimension ballooning editor and ballooned output
  • STEP reading (OpenCASCADE), 3D view in the browser
  • Tolerance checks, pass / fail marking
  • Maintenance & repair module: breakdowns and planned maintenance, machine downtime flows into planning automatically
THE DIFFERENCEBallooning and CMM preparation usually require separate, expensive quality software. Nitropi offers them inside the ERP, linked to the work order and the part record. Explore Measurement & Ballooning in detail →
05 — SECURITY

Your technical drawings don't depend on a single password.

In the multi-tenant architecture, isolation is enforced on three layers: the application, PostgreSQL row-level security (RLS) and automated tests. One company's data stays invisible to another, even if there is a bug in the code.

  • Mandatory two-factor authentication for every role; tenant admins cannot turn it off
  • Files are encrypted with AES-256-GCM using a tenant-specific key
  • Comprehensive, field-level roles and permissions with approval limits
  • Immutable audit trail and record history
THE DIFFERENCESecurity is not an "enterprise tier" extra; our smallest customer gets the same protection.
06 — DEPLOYMENT & ACCESS

Start in the cloud, move to your own server if you wish.

Nitropi runs as multi-tenant SaaS in the cloud, or on the customer's own server with the same images. There are no customer-specific code branches; everyone uses the same product with the same updates.

  • Guided setup wizard, one-command backup, restore and update
  • Ed25519-signed license; data is never locked, even after expiry
  • Web, iOS and Android; mobile use in the warehouse and at the station
  • An AI help assistant explains usage screen by screen
THE DIFFERENCEDefense and automotive suppliers on closed networks and cloud-first SMEs use exactly the same product.

Nitropi modules

CapabilityNitropiTraditional ERP suitesSMB inventory / bookkeeping tools
Implementation and go-liveReady industry model, weeksLong customization projectFast, but limited
BOM, phantom items, subcontractingBuilt inAvailable, needs configurationNone / very limited
MRP + finite-capacity scheduling (APS)One platform, with CP-SATOften a separate product / extra licenseNone
Drawing ballooning and CMM preparationBuilt inThird-party quality softwareNone
Mobile (warehouse, station, field)Native iOS / AndroidAdd-on moduleLimited
Mandatory 2FA for every role, encrypted files, RLSDefaultDepends on configurationUsually none
Same code in cloud and on-premisesYesDifferent editionsMostly desktop

The comparison is based on general characteristics of product categories and does not represent any specific competing product.

1Nitropi Measurement & Ballooning
Part of the Nitropi family · standalone or with Nitropi ERP

Upload a drawing, get a ballooned inspection report in minutes.

Browser-based inspection planning software for quality and manufacturing engineers. It finds the dimensions, tolerances and GD&T frames on PDF, DXF or scanned drawings by itself, marks them with numbered balloons, and generates the inspection report, first article (FAI) forms, SPC analysis and the CMM program from the same plan.

TR-4471_RevC.pdf· Page 1 / 2 · Vector PDFF8 Next suspectCtrl+Enter ConfirmAuto-balloon
Ø36 H7120 ±0.1 80 ±0.1 4X Ø8.5 ±0.05R5 M10×1.5-6HRa 1.6 1×45° Ø0.05AB 0.02A SECTION A-A PART NOTR-4471REVISIONCMATERIALAL 6061-T6GENERAL TOL.ISO 2768-mK 1 2 3 4 5 6 7 8 9 10
CharacteristicsTolerancesTitle block3D / CMMOutputs
1Ø36 H7 Diameter · +0.025 / 0 · ISO 28698%
2120 ±0.1 Linear · View 199%
380 ±0.1 Linear · View 197%
44X Ø8.5 ±0.05 Diameter · 4 places · 4.1 – 4.496%
5⌖ Ø0.05 Ⓜ A B GD&T position · Critical94%
6R5 Radius · ISO 2768-m ±0.291%
7M10×1.5-6H Thread93%
8Ra 1.6 Roughness · Section A-A88%
91×45° Chamfer · uncertain reading62% review
10⏥ 0.02 A GD&T flatness95%
Balloons: 0 · Zone grid: B4Read via: PDF text + OCR
35 / 35characteristics on the reference drawing, same tolerance and order
14 + 5GD&T symbols and modifiers (Ⓜ Ⓛ Ⓕ Ⓟ Ⓣ)
1 – 30samples, live pass / fail
0installation: runs in the browser
Upload

PDF, DXF, scanned drawing or image. Or start from the drawing attached to the item card.

Read

PDF text layer, OCR and exact DXF data. Title block, units and standard are recognized automatically.

Balloon

Numbered view by view, clockwise. Uncertain readings come flagged.

Measure

In the browser, with keyboard-wedge digital gauges or from CMM result files.

Report

Inspection report, AS9102, PPAP, the customer's own Excel form. Approved reports are locked.

Smart reading

  • Dimensions, tolerances, GD&T frames, threads, roughness, chamfers, SØ / SR / CR
  • OCR for scanned drawings; on DXF, dimensions are read from data, not guessed
  • Title blocks, tables, flag notes and text blocks are kept out
  • Part number, revision, material, general tolerance and units from the title block
  • Multi-page PDFs: all pages at once or page by page

Tolerances & standards

  • ISO 2768 general tolerances and ISO 286 fits (IT5–IT13, up to 500 mm)
  • ASME Y14.5 detected from the title block; decimal-place tolerance tables
  • Saved tolerance profiles; mm, cm, µm, inch and mil
  • 14 GD&T symbols, modifiers and datum references

Balloon editor

  • Move, add, delete, renumber; balloon a selected area
  • Confidence percentage; F8 jumps to the next suspect, Ctrl+Enter confirms
  • Balloon shape, color, size, number prefix and balloon profiles
  • Critical / major / minor / key classification, zone grid (B4)
  • Multi-place dimensions (4X): one balloon, separate report rows

Inspection report & SPC

  • 1–30 samples; out-of-tolerance values turn "fail" instantly
  • Per-row gauge, nonconformance number and remarks
  • Cp, Cpk, Pp, Ppk; I-MR control chart, histogram, Western Electric rules
  • Pre-submission readiness check; approved reports are locked

Outputs & customer forms

  • Ballooned PDF / PNG, inspection report in Excel and PDF
  • AS9102 Forms 1 / 2 / 3 (Rev C) and PPAP dimensional results
  • Fills the customer's own Excel form through cell mapping
  • Characteristic list as CSV / JSON, operator check sheet

Revisions & traceability

  • Balloons carry over automatically to a new drawing revision
  • Changed, new and removed dimensions are flagged; visual diff view
  • Multi-user, roles, approvals and an immutable audit trail
  • Linked to item cards and work orders; ballooning time and read method recorded

Statistical process control, inside the report

With five or more samples, an individuals and moving range chart is drawn and process capability is calculated. Trends are tracked across the approved reports of the same plan.

UCLLCLX̄ Rule 1 · point out of control
1.84Cp
1.52Cpk
1.71Pp
25samples

3D model and CMM automation

Surfaces and probe point candidates are extracted from the STEP model, each balloon is linked to the right 3D feature and a DMIS program is generated for the CMM. When measuring is done, result files are written back to the right balloon and sample automatically.

STEP · OpenCASCADE
F0007 · Cylinder Ø36 ↔ Balloon 1
8 probe points
Read STEP→Balloon ↔ feature→DMIS program→Measure on CMM→Results read back

Outputs from a single plan

PDFBallooned drawingXLSXInspection reportPDFInspection reportXLSXAS9102 Forms 1 · 2 · 3XLSXPPAP dimensional resultsXLSXCustomer Excel templateCSVCharacteristic listJSONCharacteristic dataDMISCMM programCSVCMM result templatePDFOperator check sheet
CapabilityNitropi Measurement & BallooningDesktop ballooning toolsCloud FAI platformsExcel + manual ballooning
Automatic ballooning (PDF text + OCR)YesYesYesManual
Direct DXF reading with exact dataYesSomeVariesNo
Confidence score and jump-to-suspectPercent + F8SomeAccept / rejectNo
SPC: Cp / Cpk, control chartsBuilt inRarelySupplier dashboardsManual formulas
AS9102 and PPAP formsYesPartlyYesFilled by hand
Balloon carry-over on revision + diff viewYesSomeLimitedNo
STEP 3D → DMIS, CMM results read backYesNoNoNo
Multi-user, approvals, audit trailYesSingle userYesNo
Item card and work order linkWith Nitropi ERPNoNoNo
InstallationBrowser, nonePer computerBrowserNone

The comparison is based on general characteristics of product categories and does not represent any specific competing product.

Byrezzo

The reservation platform that runs your floor minute by minute.

For restaurants, cafés and appointment-based service businesses. Guests book from your website, their phone or the AI assistant; you see the floor on a plan, the day on a Gantt chart and the business in reports.

Scroll sideways →

Software that thinks through an entire dinner service.

Every step on one platform, from the moment a booking is made to the review the guest leaves the next day.

01
DINING ROOM
TERRACE
8:30 PM · 9 tables seated · 34 guests

Table plan & floor layout

Draw your floor plan. Pick any moment and see at a glance who is sitting where, which table has guests arriving within 30 minutes and which ones are free.

02
6 PM7 PM8 PM9 PM10 PM
D-1
Smith · 4
Garcia · 2
D-2
Müller · 6
D-3
Rossi · 3
D-4
Chen · 2
Group · 8
T-1
Novak · 4
T-2
Brown · 2

Gantt chart & smart table assignment

A table × time grid with capacity, online quota and closed tables in 15-minute slots. Drag and drop to move bookings; the system picks the best table itself using table scores and combinations.

03
CLASSIC
COMPACT
ELEGANT
<script src="byrezzo.com/widget.js" data-business="your-name"></script>

A widget embedded in your own website

Three designs: Classic, Compact and Elegant. Paste the code once; when hours, tables or rules change, the widget updates itself. Multi-branch businesses get a "choose a location" step sorted by distance.

04
Do you have a terrace table for 4 on Saturday evening?
On Saturday the terrace is available at 7:30 PM and 9:00 PM. Which one should I hold?
9:00 please, one of us is gluten-free.
✓ DRAFT · Sat 9:00 PM · 4 guests · Terrace
⚠ Allergen: Gluten · Confirm?

AI guest assistant

Answers guests' questions with your business information, checks live availability and drafts the booking. The reservation is created only when the guest confirms. Inside the panel, a separate help assistant teaches your team how to use the system.

05
GlutenMilkEggPeanutHazelnutWalnutAlmondSesameSoyFishCrustaceansMolluscsMustardCeleryLupinSulphitesPistachioCashew
⚠ Allergen: Gluten, Sesame — flagged with a badge on the Gantt, hourly view, lists and notifications.

Food allergens

A ready list of 30 items covering the 14 EU allergens plus a tree-nut breakdown; businesses can add their own. The kitchen knows before the guest sits down.

06
BOOKING CONFIRMED
HAPPY BIRTHDAY
48%opened
12%clicked
37bookings

Guest communication & marketing

Branded confirmation and reminder emails ("I'll be there / I can't make it"), birthday greetings, post-visit Google review and survey requests, rule-based email campaigns to opted-in guests, with revenue reporting.

07
Website widget iOS / Android AI assistant QR code Chrome extension Panel / phone

Every channel, one calendar

Bookings from the widget, mobile app, QR code, assistant and panel all pass through the same rules. Bulk bookings from Excel via the Chrome extension; prepared for Reserve with Google integration.

08
HQ LondonBerlinIstanbulDubai

Multi-branch, regions and four languages

Headquarters, region and branch hierarchy with per-branch services, roles and permissions. Turkish, English, German and Russian interface; emails in the business's language, guest texts in the guest's language.

01 / 08
🍽Restaurants & cafés
  • Areas, tables, capacities and table combinations
  • Table scoring for seating priority
  • Open/close matrix for tables and areas by day and time
  • Waitlist and walk-in guests
  • Report dashboard: visit reason, channel, table distribution
💈Services & appointments
  • Staff, services, departments, roles and permissions
  • Group events with limited capacity
  • Session packages with remaining-credit tracking
  • Product catalog, stock and quick sale (POS)
  • Campaigns, coupons, referral program
📊Management & compliance
  • Appointment, financial, customer and staff reports
  • Guest card: birthday, notes, consent history
  • Privacy notice and explicit opt-in (KVKK / GDPR-minded)
  • One-time migration from Excel (guests + bookings)
  • An "i" usage guide on every screen
CapabilityByrezzoMarketplace booking platformsSimple appointment apps
Who owns guest dataThe businessShared with the platformThe business
Branded widget on your own website3 designs, always up to datePlatform-brandedLimited
Floor plan, Gantt, table combinationsBuilt inAvailableNone
AI assistant that makes bookingsWith live availabilityVariesNone
Restaurant + service appointments in one productYesRestaurant-focusedService-focused
Food allergen tracking30 items + customFree-text noteNone
Multi-branch, regions, per-branch permissionsBuilt inEnterprise plansLimited

The comparison is based on general characteristics of product categories and does not represent any specific competing product.

The true value of software shows up not on demo day, but at month-end close, on a busy Saturday night, when a machine stops on the shop floor. That is the moment we write for.

How we work

Consulting reflexes, product speed.

We combine the implementation discipline learned on ERP projects with the pace of SaaS products.

01

Discovery

We come on site and listen to your process end to end. Together we decide which screen will change whose working day.

02

Setup

Master data, code templates, roles and rules. Bulk import from Excel and step-by-step setup wizards.

03

Pilot

With real data and real users. Fast adoption with help cards and the AI help assistant.

04

Growth

Regular releases, new modules, new branches and plants. The same product grows with you.

Our technology

Python · DjangoPostgreSQL + RLSRedis · CeleryReact · TypeScriptNext.jsNode.jsExpo · React NativeTailwindOR-Tools CP-SATOpenCASCADEthree.jsDockerOpenAPIPlaywrightLLM integrations
Contact

Tell us about your business, let's map it out together.

A demo of Nitropi or Byrezzo, pricing, or a custom project. We're ready to listen, with 30 years of experience behind us.