# Other concepts

TrueFi infrastructure enables lenders, borrowers, and portfolio managers to deploy capital via lending pools and loans.

Portfolio managers on TrueFi deploy lending pools (or `vaults`) which in turn can deploy capital to borrowers via loans (`instruments`).

The following smart contracts represent vaults and instruments within the TrueFi protocol: 

{% tabs %}
{% tab title="Vaults" %}
{% content-ref url="credit-vaults/credit-vault-technical-details/credit-vault-contract-overview" %}
[credit-vault-contract-overview](https://docs.brila.finance/brila-protocol/credit-vaults/credit-vault-technical-details/credit-vault-contract-overview)
{% endcontent-ref %}

{% content-ref url="other-concepts/other-legacy-contracts/flexible-portfolios-legacy/flexible-portfolio-contracts" %}
[flexible-portfolio-contracts](https://docs.brila.finance/brila-protocol/other-concepts/other-legacy-contracts/flexible-portfolios-legacy/flexible-portfolio-contracts)
{% endcontent-ref %}

{% content-ref url="automated-lines-of-credit/lines-of-credit-technical-details" %}
[lines-of-credit-technical-details](https://docs.brila.finance/brila-protocol/automated-lines-of-credit/lines-of-credit-technical-details)
{% endcontent-ref %}
{% endtab %}

{% tab title="Instruments" %}
{% content-ref url="other-concepts/instruments/fixedinterestonlyloan" %}
[fixedinterestonlyloan](https://docs.brila.finance/brila-protocol/other-concepts/instruments/fixedinterestonlyloan)
{% endcontent-ref %}

{% content-ref url="other-concepts/instruments/bulletloans" %}
[bulletloans](https://docs.brila.finance/brila-protocol/other-concepts/instruments/bulletloans)
{% endcontent-ref %}
{% endtab %}

{% tab title="Other contracts" %}

* [`ManagedPortfolioFactory`](#managedportfoliofactory) 
* [`ProtocolConfig`](#protocolconfig) 
  {% endtab %}
  {% endtabs %}

### Audits & Security

View audits [here](https://github.com/trusttoken/audits/).