Environment variables

Use environment variables for repeatable deployments and centrally managed secrets. The in-app Settings page is convenient for personal instances; environment variables are better for servers, automation, and locked-down provider credentials.

Runtime and access

Variable	Default	Purpose	Sensitive
`PRESENTON_HTTP_HOST_PORT`	`5001`	Compose host port mapped to container port `80`	No
`CAN_CHANGE_KEYS`	unset	Set `false` to prevent users changing administrator-supplied provider keys	No
`AUTH_USERNAME`	unset	Preseed or recover the primary administrator account	No
`AUTH_PASSWORD`	unset	Password used only to initialize or explicitly rotate credentials	Yes
`AUTH_OVERRIDE_FROM_ENV`	`false`	Apply a one-time credential rotation from environment values	No
`RESET_AUTH`	`false`	Remove configured authentication during a recovery boot	No
`DATABASE_URL`	local SQLite	External PostgreSQL or MySQL connection URL	Yes
`DISABLE_ANONYMOUS_TRACKING`	`false`	Disable anonymous product telemetry	No

Text providers

Set LLM to the provider identifier, then configure that provider’s model and credentials.

Provider	Required or common variables
OpenAI	`LLM=openai`, `OPENAI_API_KEY`, `OPENAI_MODEL`
Google	`LLM=google`, `GOOGLE_API_KEY`, `GOOGLE_MODEL`
Anthropic	`LLM=anthropic`, `ANTHROPIC_API_KEY`, `ANTHROPIC_MODEL`
Ollama	`LLM=ollama`, `OLLAMA_URL`, `OLLAMA_MODEL`
LM Studio	`LLM=lmstudio`, `LMSTUDIO_BASE_URL`, `LMSTUDIO_MODEL`
OpenAI-compatible	`LLM=custom`, `CUSTOM_LLM_URL`, `CUSTOM_LLM_API_KEY`, `CUSTOM_MODEL`
Azure OpenAI	`LLM=azure` plus endpoint, API version, model/deployment, and credentials
Amazon Bedrock	`LLM=bedrock`, region, model, and one supported AWS authentication method
LiteLLM	`LLM=litellm`, `LITELLM_BASE_URL`, `LITELLM_MODEL`, optional API key

Provider details

Review supported roles, local-versus-hosted data flow, and provider-specific guides.

Images and search

Variable	Purpose
`IMAGE_PROVIDER`	Select stock or generated-image provider
`PEXELS_API_KEY`, `PIXABAY_API_KEY`	Stock-image credentials
`DISABLE_IMAGE_GENERATION`	Disable presentation image generation
`ENABLE_PARALLEL_IMAGE_GENERATION`	Control concurrent image work
`WEB_GROUNDING`	Enable web context by default
`WEB_SEARCH_PROVIDER`	Select `auto`, native search, SearXNG, Tavily, or Exa
`WEB_SEARCH_MAX_RESULTS`	Limit external results added to model context
`SEARXNG_BASE_URL`, `TAVILY_API_KEY`, `EXA_API_KEY`	Search-provider connection details

Processing and memory

Variable	Default	Purpose
`LITEPARSE_DPI`	`120`	Rendering resolution during document extraction
`LITEPARSE_NUM_WORKERS`	`1`	Document-processing workers
`MEM0_ENABLED`	`true`	Enable presentation-scoped memory
`MEM0_DIR`	`/app_data/mem0`	Memory storage root
`MEM0_LLM_MODEL`	Ollama model or `llama3.1:latest`	Memory extraction model
`MEM0_LLM_BASE_URL`	Ollama URL or host gateway	Compatible model endpoint
`MEM0_EMBEDDER_MODEL`	`BAAI/bge-small-en-v1.5`	Local embedding model

Apply changes safely

Keep secrets out of source control and shell history.
Change one provider role at a time and run a short generation afterward.
Restart or replace the container after environment changes.
Back up /app_data and an external database before storage or migration changes.
Treat empty values differently from deliberate false values.

Getting started

Deploy

Configure

Enterprise

Runtime and access

Text providers

Provider details

Images and search

Processing and memory

Apply changes safely

​Runtime and access

​Text providers

Provider details

​Images and search

​Processing and memory

​Apply changes safely

Runtime and access

Text providers

Images and search

Processing and memory

Apply changes safely