Use your existing tools first
If your team already runs on HubSpot, Salesforce, Slack, Gmail, Notion, Airtable, Sheets, or internal software, we build around what works.
Use the
stack your
workflow needs.
A short list, kept short on purpose. We default to the simplest thing an ops team can run for the next two quarters, and add weight only when the work asks for it.
Start with a workflow auditScroll ↓
Simple
enough
to survive.
The tools matter, but the workflow matters more. We keep the system understandable enough for teams to trust and operate.
Keep AI controlled
AI assists with extraction, drafting, classification, summarization, and routing, but humans approve decisions where judgment matters.
Make failures visible
Production workflows need logs, alerts, review queues, and clear ownership.
Build only what the workflow needs
No-code where it is enough. Custom code where reliability, control, or scale requires it.
Vespers
Control before novelty.
Built in
layers.
Six layers, each held to the same rule: the simplest tool that survives real ops motion, not the loudest one in the cycle.
Models
Frontier LLMs for reasoning and tool use, Groq for fast inference when latency is the constraint. We pick per task, never marry a single vendor.
OpenAIAnthropicGroq
Orchestration
Agent loops, graph state, retries, and human review points for operating workflows. Custom code when the shape is simple, LangGraph when it is not.
LangGraphCustom orchestration
Application
Frontend, internal tools, and API surface. Next.js is the default for UI and edges; FastAPI when the workload wants Python.
Next.jsFastAPINext.js API routes
Data & retrieval
Firestore for operating data, auth, and storage in one ecosystem. Dedicated vector stores when the work needs semantic search at scale.
FirebaseFirestoreQdrantPinecone
Jobs & glue
Durable background work for things that must finish, plus no-code glue for the workflows that connect humans and tools.
InngestTrigger.devBullMQn8nMakeZapier
Operations
Where the automation lives and how we know it is healthy. Source, hosting, error tracking, and product analytics, wired in from day one.
VercelRailwayRenderFly.ioGitHubSentryPostHog
Vespers
The stack is a means.
When in
doubt,
start here.
Most builds begin from this baseline. We swap a piece out only when the work has a clear reason: scale, compliance, or an existing system that wants to be respected.
Primary picks
OpenAIAnthropicGroqNext.jsFastAPIFirebaseInngestn8nVercelGitHubSentryPostHog
First pick · Models
01
OpenAIAnthropicGroq
First pick · App & data
02
Next.jsFastAPIFirebase
First pick · Async work
03
Inngestn8n
First pick · Operations
04
VercelGitHubSentryPostHog
The stack is a means. If your team already runs on something else and it works, we build with what you have.
Build with us