Using the app
The app
A tour of the Plumb app, from the rate board to the transaction tape.
The app has three tabs, Borrow, Earn and Redeem, around one shared picture of the branch: the rate board. Everything on screen is read from the chain every few seconds.
The rate board
The board is the branch drawn as it is. Each of the sixteen strings is a rate, 1% on the left to 16% on the right. A string's length is the PLMB owed at that rate, and each knot on it is a trove.
- Hover a string to read its rate, its debt and how many troves hang there.
- Click a string, or drag your vermilion line, to choose a rate on the Borrow tab.
- On Earn, troves that could be liquidated at today's price hang as dashed vermilion strings.
- On Redeem, the part of the leftmost string your redemption would take turns dashed before you sign.
Your own trove is drawn in vermilion, and on Borrow your line carries the debt you are about to add, so you can see where it would hang.
The figures above the board
The row above the board summarises the branch: total PLMB owed (including interest not yet settled), the JitoSOL behind it, the branch's ratio against its 180% limit, the stability pool, and the slot the reading came from.
Borrow
Without a trove the desk is a form: deposit, borrow, rate. The price ruler under it shows the current JitoSOL price and your liquidation price, with the zone below it hatched. Drag the liquidation marker to set how far JitoSOL may fall, and the app works out the PLMB you can borrow.
With a trove the desk shows it: collateral, debt accruing by the second, ratio and liquidation price. Choose Collateral, Debt, Rate or Close to change it. If your trove is below 150% the desk says so in vermilion, with the exact JitoSOL to add or PLMB to repay to get back.
Earn
Your deposit, your share of the pool, your JitoSOL gains and the pool's current yield. Deposit or withdraw PLMB, claim your gains, and below that, every trove that can be liquidated right now, with a Liquidate button for each.
Redeem
Enter PLMB and see what you would receive: JitoSOL before and after the fee, the fee itself, and the troves your redemption would reduce. The amount is capped at what the lowest rate holds, because one redemption takes from one rate.
Before you sign
Every button that sends a transaction is disabled until the inputs make sense, and the reason is written under it: "Borrow at least 100 PLMB", "The 7% rate is full", "Borrowing is paused" with the oracle's reason. When the inputs pass, the app asks the Plumb API to build and simulate the transaction against the chain. Only a transaction that simulates cleanly reaches your wallet. See Wallets and transactions.
The tape
Each transaction gets a line on the tape at the bottom of the screen, which follows it step by step: checking it will go through, waiting for your approval, sending, waiting for confirmation, confirmed. A confirmed transaction links to an explorer, and a failed one says why in a sentence rather than an error code.
The price chip
The chip in the top bar shows the JitoSOL price the program would use now. Open it to see the SOL price, the stake rate, the market price and which of the two valuations won.
# The app A tour of the Plumb app, from the rate board to the transaction tape. The [app](/app) has three tabs, **Borrow**, **Earn** and **Redeem**, around one shared picture of the branch: the rate board. Everything on screen is read from the chain every few seconds. ## The rate board The board is the branch drawn as it is. Each of the sixteen strings is a rate, 1% on the left to 16% on the right. A string's length is the PLMB owed at that rate, and each knot on it is a trove. - **Hover** a string to read its rate, its debt and how many troves hang there. - **Click** a string, or **drag** your vermilion line, to choose a rate on the Borrow tab. - On **Earn**, troves that could be liquidated at today's price hang as dashed vermilion strings. - On **Redeem**, the part of the leftmost string your redemption would take turns dashed before you sign. Your own trove is drawn in vermilion, and on Borrow your line carries the debt you are about to add, so you can see where it would hang. ## The figures above the board The row above the board summarises the branch: total PLMB owed (including interest not yet settled), the JitoSOL behind it, the branch's ratio against its 180% limit, the stability pool, and the slot the reading came from. ## Borrow Without a trove the desk is a form: deposit, borrow, rate. The price ruler under it shows the current JitoSOL price and your liquidation price, with the zone below it hatched. Drag the liquidation marker to set how far JitoSOL may fall, and the app works out the PLMB you can borrow. With a trove the desk shows it: collateral, debt accruing by the second, ratio and liquidation price. Choose **Collateral**, **Debt**, **Rate** or **Close** to change it. If your trove is below 150% the desk says so in vermilion, with the exact JitoSOL to add or PLMB to repay to get back. ## Earn Your deposit, your share of the pool, your JitoSOL gains and the pool's current yield. Deposit or withdraw PLMB, claim your gains, and below that, every trove that can be liquidated right now, with a **Liquidate** button for each. ## Redeem Enter PLMB and see what you would receive: JitoSOL before and after the fee, the fee itself, and the troves your redemption would reduce. The amount is capped at what the lowest rate holds, because one redemption takes from one rate. ## Before you sign Every button that sends a transaction is disabled until the inputs make sense, and the reason is written under it: "Borrow at least 100 PLMB", "The 7% rate is full", "Borrowing is paused" with the oracle's reason. When the inputs pass, the app asks the Plumb API to build and simulate the transaction against the chain. Only a transaction that simulates cleanly reaches your wallet. See [Wallets and transactions](/docs/wallets). ## The tape Each transaction gets a line on the tape at the bottom of the screen, which follows it step by step: checking it will go through, waiting for your approval, sending, waiting for confirmation, confirmed. A confirmed transaction links to an explorer, and a failed one says why in a sentence rather than an error code. ## The price chip The chip in the top bar shows the JitoSOL price the program would use now. Open it to see the SOL price, the stake rate, the market price and which of the two valuations won.