Liveinfrastructure/feature-management-platform

Feature Flags & Rollouts

A self-hosted feature management platform that combines the capabilities of LaunchDarkly, Statsig, Split, Flagsmith, and Unleash. Includes boolean and multivariate feature flags, user targeting with attribute rules, percentage-based progressive rollouts, A/B experimentation with statistical analysis, remote configuration management, feature lifecycle tracking, audit logging, and SDK support for multiple languages. The spec covers real-time flag evaluation, streaming updates, and comprehensive analytics.

Replaces 5 vendors

LaunchDarklyStatsigSplitFlagsmithUnleash

One platform spec that captures the best features from all 5 vendors. Buy once, deploy on your infrastructure, replace them all.

52
API Endpoints
24
Data Entities
$5k–$100k+/year
Annual Savings

What’s Included

Boolean and multivariate feature flags
User targeting with attribute-based rules
Percentage-based progressive rollouts
A/B experimentation with statistical analysis
Remote configuration management
Feature lifecycle tracking and stale flag detection
Audit logging with change history
Real-time flag evaluation via streaming
Multi-environment support (dev/staging/prod)
SDK support for JavaScript, Python, Go, Ruby
Scheduled flag changes and kill switches
Role-based access with project scoping

Vendors You Can Eliminate

This spec replaces 10 SaaS tools. Here’s what you’d stop paying:

LaunchDarkly
Feature flag management and experimentation
$36k/yr (50 seats)
$0/yr
Optimizely Feature Experimentation
Feature management and experimentation
$30k/yr
$0/yr
Statsig
Feature flags with built-in product analytics
$24k/yr
$0/yr
Split
Feature delivery and experimentation platform
$18k/yr
$0/yr
Harness Feature Flags
Enterprise feature flag management
$15k/yr
$0/yr
Flagsmith
Open-source feature flag management
$12k/yr
$0/yr
Unleash
Open-source feature toggle service
$10k/yr
$0/yr
DevCycle
Developer-first feature flag management
$8k/yr
$0/yr
ConfigCat
Feature flag management with remote config
$6k/yr
$0/yr
GrowthBook
Open-source feature flags and A/B testing
$5k/yr
$0/yr

Tech Stack

Node.js / TypeScriptReactPostgreSQLRedisDocker

Compliance Modules(Enterprise)

SOC 2 Type II
GDPR / CCPA
HIPAA
SOX ITGC
$299one-time

Replaces 5 vendors · Save $5k–$100k+/year

Get Builder — $299Get Enterprise — $1,499
Best Value~$90/spec

Get every spec for $2,799

All 31 platforms at Enterprise tier. Current + future specs, forever.

Learn more

Builder includes

Complete spec.md specification
Deployment config
AI prompt bundle
Live demo access
Seed data & fixtures
Migration guides for 5 vendors

Capitalize, Don’t Expense

Unlike SaaS subscriptions that hit your P&L as OpEx, self-hosted software built from this spec can be capitalized as an intangible asset under ASC 350-40 — improving EBITDA and creating balance sheet value.

Learn about CapEx advantages

Live Demo

Try the working proof-point demo before purchasing.

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