glanzlicht / GastroOS
Verified secure showcase
500 Files 1 MB Public size 31 Redacted TypeScript · SQL · JSON · Markdown · DOCKERIGNORE · EXAMPLE

Project overview

GastroOS is a verified code showcase with 500 visible project entries across 3 top-level modules. The primary detected language is TypeScript; protected files remain visible in the structure while their contents stay private.

README

GastravaOS

GastravaOS is a modular Hospitality Operational Intelligence Platform.

The technical repository name remains GastroOS for compatibility. The product is presented publicly as GastravaOS.

Product preview

GastravaOS operations dashboard

GastravaOS is designed for hospitality operations ranging from small venues to larger multi-location organizations. The platform combines operational workflows, resilient data handling and role-specific user experiences without exposing internal complexity to operators.

What this repository demonstrates

This repository is presented as a technical portfolio showcase, not as a complete product blueprint.

It demonstrates work across:

  • backend engineering with Node.js, TypeScript, NestJS and REST/OpenAPI;
  • PostgreSQL data modeling, explicit SQL migrations and transactional consistency;
  • Flutter application architecture with Riverpod, go_router, Drift/SQLite and Dio;
  • operational workflows across hospitality domains;
  • offline-capable client foundations and synchronization patterns;
  • real-time state reconciliation and event-driven integration patterns;
  • integrations for storage, payments, fiscal/accounting systems and external platforms;
  • Docker-based development, CI, observability and runtime verification;
  • tenant-aware security, audit-oriented design and permission boundaries;
  • applied AI around deterministic domain data and human-controlled actions.

Technology stack

AreaTechnology
BackendNode.js 24 LTS, TypeScript, NestJS 11
APIREST / OpenAPI
DatabasePostgreSQL 18, Drizzle ORM, explicit SQL migrations
FrontendFlutter, Riverpod, go_router
Local dataDrift / SQLite
NetworkingDio, json_serializable
InfrastructureDocker Compose, S3-compatible storage
ArchitectureModular monolith, transactional outbox
QualityAutomated tests, CI, observability and runtime verification

Engineering approach

The codebase is organized around clear boundaries and reusable platform capabilities rather than one large feature layer.

Recurring engineering principles include:

  • deterministic and auditable domain state;
  • separation of operational truth from presentation;
  • role- and context-specific interfaces;
  • resilience under intermittent connectivity;
  • explicit integration adapters;
  • composable capabilities instead of duplicated vertical implementations;
  • controlled exposure of sensitive business, security and product logic.

Portfolio boundary

The public showcase intentionally omits detailed roadmaps, ADRs, security internals, commercial logic, AI prompts, operational playbooks and reconstructable product strategy.

Those materials remain in the private repository. The public view is optimized so technical reviewers can evaluate engineering breadth and implementation quality without receiving a reconstruction guide for the product.

Local development

The repository uses a versioned pnpm dependency graph.

corepack enable
pnpm install --frozen-lockfile

Project-specific runtime and verification details remain in the private engineering documentation.

Status

GastravaOS is under active development. The repository contains a broad implementation foundation and ongoing product work rather than a finished commercial release.

The public showcase focuses on engineering capability, architecture quality and implementation breadth while deliberately omitting core IP.

apps/backend/src/infrastructure/database/migrations/0041_sprint_t_completion.sqlSQL
-- Sprint T completion — domain event routing, recovery resolution, outage receipts and export jobs.
create table if not exists fiscal_event_consumption (
outbox_event_id uuid not null references outbox_events(id) on delete cascade,
integration_connection_id uuid not null references integration_connections(id) on delete cascade,
fiscal_transaction_id uuid references fiscal_transactions(id) on delete set null,
status text not null default 'processed',
created_at timestamptz not null default now(),
primary key(outbox_event_id,integration_connection_id),
constraint fiscal_event_consumption_status_check check(status in ('processed','skipped','failed'))
);
create table if not exists fiscal_recovery_resolutions (
id uuid primary key default gen_random_uuid(),
organization_id uuid not null references organizations(id) on delete cascade,
fiscal_recovery_case_id uuid not null references fiscal_recovery_cases(id) on delete cascade,
action text not null,
actor_user_id uuid references user_accounts(id) on delete set null,
note text,
result_json jsonb not null default '{}'::jsonb,
created_at timestamptz not null default now(),
constraint fiscal_recovery_resolution_action_check check(
action in ('refresh_provider','retry_finish','provider_support','ignore')
)
);
create index if not exists idx_fiscal_recovery_resolutions_case
on fiscal_recovery_resolutions(fiscal_recovery_case_id,created_at desc);
create table if not exists fiscal_export_jobs (
id uuid primary key default gen_random_uuid(),
organization_id uuid not null references organizations(id) on delete cascade,
location_id uuid not null references locations(id) on delete cascade,
integration_connection_id uuid references integration_connections(id) on delete set null,
export_type text not null,
period_start date not null,
period_end date not null,
status text not null default 'queued',
provider_export_reference text,
file_asset_id uuid references file_assets(id) on delete set null,
requested_by_user_id uuid references user_accounts(id) on delete set null,
created_at timestamptz not null default now(),
started_at timestamptz,
completed_at timestamptz,
last_error text,
constraint fiscal_export_type_check check(export_type in ('tse_export','dsfinvk')),
constraint fiscal_export_status_check check(status in ('queued','processing','completed','failed','unsupported'))
);
create index if not exists idx_fiscal_export_jobs_work
on fiscal_export_jobs(status,created_at);
create table if not exists fiscal_outage_receipt_events (
id uuid primary key default gen_random_uuid(),
organization_id uuid not null references organizations(id) on delete cascade,
location_id uuid not null references locations(id) on delete cascade,
fiscal_transaction_id uuid not null references fiscal_transactions(id) on delete cascade,
outage_mode text not null,
receipt_note_key text not null,
created_at timestamptz not null default now()
);
create unique index if not exists idx_fiscal_outage_receipt_once
on fiscal_outage_receipt_events(fiscal_transaction_id);
insert into permissions(permission_key,description) values
('fiscal.exports.create','Create TSE/DSFinV-K export jobs'),
('fiscal.exports.read','Read TSE/DSFinV-K export jobs'),
('fiscal.recovery.manage','Manage fiscal recovery cases')
on conflict(permission_key) do nothing;

Architecture

High-level modules detected from the verified public snapshot. Protected implementation details are intentionally omitted.

appsmodule
.vscodemodule
.githubmodule

Technology stack

TypeScriptSQLMarkdownJSONGITIGNOREDOCKERIGNORENode.js / JavaScript ecosystem
TypeScript68.8%
SQL20.0%
Markdown10.9%
JSON0.3%
GITIGNORE0.1%
DOCKERIGNORE0.0%
CJS0.0%
MJS0.0%